Welcome. My name is Dr. Eratula. We will be going over to the bedside neurologic examination today. This is our [inaudible] patient. My name is Eratula. What's your name? Susan. Susan. Nice to meet you, Susan. Nice to meet you. So the basic that bedside neurologic examination starts off with the mental status examination. Here we'll be going over a basic mental set examination. If a full examination is to be done, that should be done under ideal conditions with a trained professional. In this case, we're going to go over some basic functions in a systematic way in order to test out both global and looking for focal deficits as well. Let's start off with first level of alertness. As you can see, Susan here is nice alert, eyes are open. She's attentive to me and was able to quickly give me her name. There'll be many cases when you may encounter someone that's not fully alert, eyes are closed, they may be sleepy, drowsy, or in a comatos state. In those cases, you want to just describe what you see. Sometimes you will need a soft voice to wake them up, a stronger voice to wake them up, a tactile stimuli, even stronger tactile stimuli or even sometimes noxious stimuli to wake someone up. In these cases, I implore you to not use actual categorical terms. Just say what you saw. After the level of alertness we'll be checking language. Language testing involves several things, spontaneous speech, comprehension, naming, and repetition. A formal language examination will also include reading and writing. If the rest of these steps are done, though, reading and writing are rarely needed in a full examination. Let's start off a spontaneous speech. Hi, Susan, how are you doing today? I'm doing fine. Can you tell me anything about the weather today? It's a little bit cloudy, but it's fairly warm. The first part of language testing is looking for fluency. Are they fluent? Meaning, is the rate the length of the sentence? Is it smooth? Is it speech effort? All these things go into fluency. After you've figured that someone's fluent in their native tongue or native language, we will check comprehension. Susan I'm going to ask you a couple of questions. Can you touch your left ear lobe with your right thumb? Can you touch your nose, then point to the door? Then I also ask simple one, two or three step commands, and then I will ask simple, yes or no questions. Susan, do you put your shoes on before your socks? Yes or no? No. Good. The reason for yes or no questions or just follow simple commands is if someone's severely [inaudible] that you can't understand what they're saying or mechanically ventilated, you can still test comprehension and language testing. Next is repetition. Susan, I'm going to have you repeat some phrases, okay? Okay. They heard him speak on the radio last night. They heard him speak on the radio last night. Today was a good day. Today was a good day. Repetition can be paradoxically preserved or there can be a dysfunction and repetition on its own. That's why it's important to test repetition. Next, we'll check naming. For naming, if you have the ability of using an NI stroke sale card. I recommend doing this. This NI stroke sale card has a variety of objects. We'll just have Susan name here. Glove. Cactus, chair, key, hammock, feather. If you don't have an NI stroke skill naming card, you can use everyday objects. Here's an example. What do we call these? Knuckles. Fingers. This finger? Index finger. Pinky finger. Thumb. Collar. What you want to use is both high frequency objects or objects that are everyday named and low frequency objects like knuckles, for instance. After you've set up both alertness and language, now you can go ahead and a test for higher order cognitive functions. Orientation questions are frequently tested. These are a basic screening type questions that are meant to look for really big global dysfunction. There are no set questions. You can ask whatever you want. I tend to use both easy and hard orientation questions in this case. Susan, what's today's date? Today is August 6, 2019. Which floor are we on? Third floor. What season are we in? Summer. Good. After orientation, we check attention. Attention can be checked in a number of different ways. In this case, I will demonstrate one way of checking attention. Attention is important because if someone's not attentive to the task at hand, you can't accurately describe the deficit if they're not going to be doing it correctly. Attention is always tested in a mental status examination. Susan, can you spell the word world. W-O-R-L-D. Now, spell the word world backwards. D-L-R-O-W. That's just one way of checking attention. Again, attention is very important as this sets up the rest of your examination. Next, we'll be checking spatial attention. The human brain has unique characteristics of having special attention to your left and right side of your visual field, of the actuary world. This can be tested in a number of different ways. What we're going to be using here is both sensory tactile, and sensory visual attention. Using something called a double simultaneous sensory examination. In this case, you want to make sure that there's no deficits in vision or sensory before accurately interpreting this examination. We will demonstrate here both. Susan, can I have you close your eyes? Now I'm going to touch the left, right or both sides of your face. Just tell me which side I'm touching. Here we go. Left. Right. Both. Great. Open your eyes. That was tactile sensory attention testing. The next one will go over vision. Susan, can you just look straight ahead at me? Now, using your peripheral vision, I want you just to point to the finger that's moving. It will be left right or both, but just point to that. Okay. Excellent. That's one way or two ways of actually checking attention. There are many others. Next is memory. Memory can also be tested a number of different ways. On a bedside examination, the best way of testing memory is just checking verbal memory. In this case, we will give a 3-4 item recall test. We will be checking both immediate recall. And later recall, which is immediate memory and working memory. We won't be checking long term memory. Susan, I'm going to give you three things to remember. Purple Street, 42, excited pentagon. Can you repeat those for me? Purple Street, 42, excited pentagon. Good. You want to make sure they repeat it so they start registering it. I usually wait about 10 or 15 seconds afterwards to have them repeat it again. Purple Street, 42 excited pentagon. Good. This is to ensure that I made it into the immediate memory. At this moment, you wait about 3-5 minutes before asking your patient to repeat the words. It's during this time, you can go on with the rest of examination. Usually, the cranial nerve examination can be done next, and then you come back and ask about those words. This again is checking both immediate memory, working memory, and then also short term memory. We will not be asking long term memory, but in those cases, you can ask historical facts like past presidents. Both usually I go back about three presidencies, or depending on the patients where they're from, any other historical facts that are of long term. We'll pretend that this is the three or five minutes have come by. What were those three things? Purple Street, 42 excited pentagon. Great. That's the mental side examination. The next part is the cranial nerve examination. We will go cranials 1-12 and we'll be describing on each of these in succession. For cranial number 1, smell on testing, we don't usually do this at the bedside. But if you were, you'd be using something like either coffee or gum, something that's not noxious, and you'll be testing each nostril independently. Asking for simply, have you noticed a change in your sense of smell is not accurately described and a lot of times actually misses an important cranial number 1 dysfunction. For cranial number 2, I'll check the optic nerve systems. This checks a couple of things. Both we're going to check visual acuity, visual fields, and pupilary reflexes. Start off. Susan, do you wear eyelasses or corrective eye wear? I do. You do. Great. There we go. Thank you. For visual acuity, you want to make sure that your patient is wearing corrective lessens if needed and if available. This case, we're going to use selling charts or near charts. It's important to look at your near chart to see which one what's the direction. Here, this one says use at six feet. This one says use at 14 inches. Please read the directions of which near chart you have. Susan, can you hold that about 14 inches away and then read the lowest line in terms of numbers to me? 9, 3, 7,8, 2, 6. You'll be doing this both with left and right eyes each closed to check both sides. Next, we'll be looking at visual fields. There's a number of way of checking visual fields. I will be teaching one manner, which, if done correctly will catch most major abnormalities. If it's a confrontation test does not come close to an actual perimeter, formal visual field testing. That should be done in an ophthalmologist or optometrist office. But in a bedside test is the best way of picking up deficits. Can you cover up, you now probably take your eye wear off. I'll take that. Thank you. Cover one of your eyes. Now look straight here right on my nose. Now, you use your peripheral vision, and I'm going to come in with a finger from behind your head, and you just tell me when you see it. You'll be checking for quadrants. Look right here. Tell me when you start seeing my finger come into. There. There. There. Good. You'll be checking both sides and comparing from side to side. Next, is the pupilar exam. For the pupilar exam, you want to make sure you've noticed what type of lighting you already have. You'll be looking at the pupils, the size, the shapes of the pupils. You will notice and sometimes younger people, the pupils are larger, and older folks, the pupils may be already miotic. You want to make sure you have a light source that's adequate. Meaning poor light but sometimes may not be enough stimulate to make the pupils react. Susan, stare off into the distance. The reason you want someone to stare off in the distance that you don't get the accommodation reflex. Is a bright light. And shine at each pupil independently, looking at the speed and the degree of reaction. You'll be looking at the direct response and the consensual response, meaning the other pupil. If appropriate, you'll be doing a swinging flashlight test. I also use a light source at an oblique angle as this is better tolerated directly. Next, we'll be checking under three, four and six. We test this and the bedside is using our standard H pattern. This is to look at both specific extracular muscles and testing each of these nerves. Now all of these nerves actually work together, three, four and six and work together even at the brain stem. This is a complex examination that sometimes needs careful examination. In this case, you'll be looking not only at the velocity of the eyes but the degree of movements, and how well they actually work together? The first thoughts off by looking at the eyes and primary gaze. Susan, just stare straight ahead. Now, what I want you to do is follow my finger here with your eyes to one side, looking at the degree, up, down, across and H pattern. Next to Cranial Nerve 5. For five, we look at sensory testing. We won't be checking motor five, as it rarely adds to the diagnosis. In this case, you do not have to have the patient have the eyes open or closed, you're just simply looking for any sensory disturbance. We'll be using a couple of things, light touch. I'm going to both sides of your face, tell me if it feels about the same. V1. Yes. V2. Yes. V3. Yes. Distribution. You want to avoid the angle of the jaw. That's C2. That's not on Cranial Nerve 5. You'll be doing this with a number of modalities. That was light touch. You can also do temperature sensation. Touch both sides of your face with this cool 24. Just let me know if it feels cool if it feels about the same on both sides. Okay. Does that feel cool? Yes. And here? Yes. All the same on both sides? Yes. Here. Yes. Here. And here? Yes. Okay. And pinprick. In this case, we'll be using a sharp object here. You want to make sure it feels sharp to them, not just pressure but actual sharpness. Does this feel sharp? Yes. Does this feel about the same here and here? Yes. Okay. You'll be doing that in the V1, and 3 distribution. Next is Cranial Nerve 7. For that, we'll be looking at facial musculature and excursion. You want to look at your patient's face at rest, looking at if there's any asymmetries in terms of the palpable fissure, the nose or nasolabial folds. You'll be looking at patterns and wrinkle. You'll note that in older folks, there may be an asymmetry in wrinkles, that may be normal. Now you'll be checking both upper face and lower face. Susan, can you give me a good big smile? Good. And again one more time. At the nasolabial folds here and here, and the amount of teeth you see on each side. Now, Susan, can you lift up your eyebrows? Here you'll be looking at the wrinkle that happens and how fast she moves up the eyebrows and to the degree. Now can you close your eyes tight tight and don't let me open them. Don't let me open them. Good. When someone close their eyes pretty tight, you should not be able to open them easily with your fingers. Next, it's Cranial Nerve 8. For that, we'll be just checking Collar examination. Susan, can you cover up one of your ears with your finger? I'm going to come in from the side, just rubbing my fingers. Just tell me when you can hear it. Okay. There. Good. Now the other side. There. Good. You want to know at which point they actually were able to hear their finger rubs. This is a bedside examination. Again, formal audiogram examination is much better at picking up subtle deficits. In this case, there should be a screening examination. If you do have someone you believe is a hearing deficit, you can do the web and in test. In this case, I will recommend just doing the Rinne test as this will discriminate between conductive and sensory neural hearing loss. Here's one quick way of doing it. Lightly strike your tuning fork and then place it on the mastoid process back here. Now, let me know, is this louder than this? Is A or B louder? B. B. And that's a normal examination. Next is Cranial Nerve 9 and 10. This includes the gag reflex. The gag is not routinely tested at the bedside, so we will not test that here today. If one is to test gag, remember that you had to check gag bilaterally. For 10, that is the soft palate elevation. In this case, you will have your patient open up the mouth wide. They'll say, uh, and you're going to be looking at soft palate as it raises, making sure that both sides raise equally. So, can you open up your mouth? And then give a big uh. Uh. Okay. Good. Here, I was looking at the soft palate and the uvula, make sure that the uvula raised symmetrically. If the uvula deviates to one side or the other, that suggests that one of the palates is not raising fully. Next is Cranial Nerve 11. For that, I'll be checking trapezius muscles and sternocleidomastoid muscles, either or can be tested. The trapezius muscle is recommended for testing as this one does not receive dual innervation like the sternocleidomastoid, much like the upper half of the face on facial nerve testing. Susan, can you raise your shoulders up. There you go. Now here you're looking at the degree and how fast. Relax them again, raise them up one more time. Now keeping them nice and strong. Good. You should not be able to move. For sternocleidomastod, you'll ask the patient to move the head from one side and the other against force. I want to put my hand here. I want you to push against it, nice and strong. In this case, is you're looking at the sternocleidomastoid and the strength. Now look at the other side. Now push against my hand, go and you see the belly here of the sternocleidomastoid and checking the strength. For Cranial Nerve 12, this is purely a motor of the tongue. In this case, what we'll be doing is looking at the tongue both at rest and with movement. Susan, can you just open up your mouth and rest your tongue in place? Here, you're looking at the tongue, make sure there's no furrowing or wrinkle to suggest atrophy on one side of the other. You're also looking for facications here. Now, Susan, can you stick your tongue out straight ahead? Move side to side. Nice and fast. Excellent. If you suspect weakness, you can also check muscle strength. Susan, can you push your tongue on the inside of your cheek on your left side? There you go. Nice and strong. How about the other side? That's equal. That will be the cranial nerves. Next we will be looking at the neuromuscular examination. This is again a bed size screen examination. The neuromuscular examination can take quite a bit of time. In this case, we'll be going over a screen examination. If there's any type of deficit that's detected or suspected, please do a more focus examination around the areas of suspected deficits. The neuromuscular examination starts off with inspection. What you want to look at is muscle bulk. Make sure that they're symmetric, noting for any atrophy or fasciculations. This all looks very symmetric. There's no fasciculations. Next, we'll be looking at tone. For tone, you want to make sure that the patient does not help you out. Make sure this is nice. Don't help me out at all. I'm going to be moving your arm. What you want to do is move it slowly, with the full extension in flexion at the elbow. Then quickly. That's all. This is checking for both rigidity and spasticity. You will be doing this in both arms. Next is strength testing. Again, we'll be going over a basic strength examination. You'll be having more strength testing lectures on the neuromuscular portion of this block. We'll be checking a couple of major muscles here. We'll start off with deltoids. Susan, can you rip your arms up. You want to make sure when you're checking any major muscle groups is to go two thirds of the way from the fulcrum. In this case from the deltoid, about two thirds of the way out. You want to make sure that you use enough force. You're looking for force generation, not endurance. What you're looking for is immediate force, and that's about it. This will help with discriminating against, especially people who have pain and or just poor endurance. So Susan, on the count of three, I want you to pull up and I'm going to push down. One, two, three, okay. Another side, 1,2,3, good. So strong. Again, as you noticed, it's just impact force or that just that force for that first second. You don't need endurance testing. We'll go through the next couple of muscles. Now for biceps, em, have your arms like this, nice and strong, about two thirds of the way out. You want to make sure you isolate each individual muscle group and support it. On a of three, you pull in I'm going to push out 1,2,3. Good. And 1,2,3. Good. That be biceps. Triceps, I want you to push out, 1,2,3. You can relax this side will be doing one side. Let me go. Wrist extension and inflection, make a nice fist, bring it up. One, two, three. Good. And flex it in. One, two, three. Good. Finger extension reflection. For finger extension, you want to make sure that the wrist is a neutral position. Bring your fingers up nice and high. At the proximal joint, you want to push down strongly. Bring them up nice and strong, one, two, three. Good. Now for finger flexion, to check the distal joints. Pull in, nice and strong. Abductor pollicis brevis. For this, I want you to put your thumb up. Nice and strong, don't push down. Good. At the same time you're looking at muscle bulk, and comparing both sides. You'll be moving from side to side, comparing each of these muscle groups. Next reflexes. For reflex testing, you'll be checking just a couple of major stretch reflexes. In case, you want to make sure that the arm and the reflex that you're checking or the muscle you're checking is a nice neutral position. If you have the patient rest arms right on the laps, it is easily done. You want to feel the tendon first and then strike the tendon either over your finger or directly. I tend to use over my finger. I feel the tendon, here's the bicep tendent. Nice reflex, and you'll be recording these reflexes. For break your als. Sometimes it's important to see that muscle. Can you pull up here? You see the break your ALS right here, that tendons about here. Now relax. Okay. Triceps, hold your arm like this. Again, feel the tendent. You'll be doing this from side to side comparing and looking for any asymmetries. This is again, just to cooperate any other findings that you may have found. You may not that even normal patients, they may have either no reflexes or varia brisk reflexes. These on their own do not suggest any disease process, they must be taking into account with the rest of the examination. One way of looking or screening for subtle weakness in the upper extremities is by checking pronator drift. This is how you test it. Susan, can you stick your hands out nice like you're holding up a pizza box. Now spread those fingers. Keep them there. Here you're looking for any finger curling or pronation or flection at the elbow. To make this a little bit more sensitive, we'll ask you to close your eyes. Close your eyes. Again, looking for the same thing. In order to make this test a little bit more sensitive, you want to distract the patient not only by closing her eyes, but asking to do something else. Susan, can you shake your head now? Excellent. As you can see there is no movement in the arms. Okay, relax. For neuromuscular testing of the loche, again, you'll be looking at muscle bulk. Noticing if there's any asymmetries, Faciculations. Tone is hard to test in Loche so we will not be testing tone here. For strength testing, again, you'll be looking at the major muscle groups. Again, if there's a specific area of concern, you may want to focus in on that area of concern particular. Much like the upper extremities and the lower extremitis, you want to go about two thirds away from the fulcrum. In this case, for hip flexion, we'll go first. You want to go about two thirds of a way. Susan, can you lift up your knee, nice high, There you go. Again, you're checking for strength and not endurance. At the counter I'm going to push down, you push up, you can hold go ahead and brace yourself if you need to. Here you go. One, two, three. Good. Next side. One, two, three. Good. You'll be going from side to side in all major muscle groups. We'll be checking knee extension. Susan, can you kick out right here? Hold it right here. Nice and strong, and only push it in on the count of three, one, two, three? Good. And pull in against my hand here. Nice and strong. You want to also make sure that you isolate each of the fulcrums here. Pull in one, two, three, nice and strong. Good. Go from side to side. You'll be checking both plantar extension or dorsal flexion and plantar flexion. Susan, keep your foot nice and high there. Don't let me push it down. One, two, three. Good. Then push down like a gas pedal, one, two, three. Please note that the gas trucks are very strong muscles. If you're unable to get any weakness here, you may want to have them stand up and get on their tippy toes. For the toe, bring up the toe, nice and strong, one, two, three, and you'll check for foot evers. Now I want you to move your foot that way. Keep it there, don't move it in. Good. Again, you'll be going from side to side. For reflexes, you'll be checking a patella reflex and an achille reflex. Again, you want to make sure that the patient is nice and relaxed. You want to feel for the tendon before striking it. These tendons can be strike directly without causing pain. Here we go, relax. You'll be going from side to side, checking for asymmetry. For the achille reflex, you want to make sure you do reflex to foot and palpate the tendon and strike it. Again, you'll be going from side to side. Next you will demonstrate something called the Babinski sign, looking at the plantar reflex. I note that there's a number of different ways this can be tested. This is just one way of testing for the plantar reflex. In infancy, we have when you strike the plantar surface, a toe that goes up through myellination, actually toe starts coming down. In adults, the toe should be going down on plantar simulation. If the toe goes up, that suggests or can suggest that there's corticospinal loss of integrity of the cortical spinal tract. In this case, just relax. I'm just going to strike the bottom of your foot and just rub the bottom of it out. Okay? In this case, the toe doesn't move, didn't move at all. Okay. And that also can be normal. Well, you're looking here again is if the toe goes up. If the toe goes up and then down it's sill recorded as an upgoing toe. For sensory evaluation, this can be one of the most frustrating and most time consuming examinations in in the neuro exam. I suggest doing a screening examination first, and then if there's a deficit that's suspected, having more careful evaluation in that space. You want to check at several modalities, both light touch and pimp or cold sensation. Checking for cold sensation or [inaudible] for small fiber neuropathy, and then light touch or vibration for large fiber neuropathy. Start with the light touch. You want to do it in both proximal and distal segments. So touch your hands here with this swab. Does that feel about the same on both sides? Yes. Okay. How about here and here? Yes. And how about here and here? Yes. Same both sides. Great. For cold sensation, same thing. Distal and proximal. Feel nice and cool, does that feel cool? Yes. All right. Does this feel about cool on both sides here in your hands? Yes. How about here in your shoulders? Yes. Abit cool. Okay. Pinprick. Susan, do you feel this? Yes. Does that feel sharp to you? Yes. Okay. Do you want to look for it to make sure there's any asymmetries in both distal and then proximal. All right Susan, as I come up here, does that feel about sharp as I'm coming up? Yes. All right. Does it feel about the same here? Yes. On that side. All right. And sharp from your hand to your shoulder? Yes. Okay. Next is vibration testing. For vibration testing, you want to put the tuning for vibrating tuning fork on a bony prominence. In this case, we use this [inaudible] joint right here. You'll hold your own finger underneath the joint and you'll feel both the vibration through her finger onto your finger pad. A normal test here, you will be asking the patient to tell you when the vibration is no longer proceed. If you can still feel that vibration through their finger, that's an amoral examination. If you lose sensation first, that should be normal. Do you feel that vibration there? I do. Tell me when it goes. No. Okay. I had started feeling before she did, so that's a normal examination for that. Next, If sensation is normal, you may want to check for cortical sensory loss. These are higher order integrations. Sensation is processed at multiple sites. One important thing to screen for is that higher order cortico sensory integration is also normal. This can be done in a number of different ways, both by checking for something called a graphesthesia or cyagnosis. I'll demonstrate one way. Susan, can I get your palm here? And I'm going to scribble in a number. Without you looking, tell me which number I am scribbling. You can close your eyes or not. Five, six. Good. You want to check this on both sides. For sensory evaluation of the lower extremities, you'll be checking again multiple modalities. Light touch, cold sensation or pimpex sensation, and checking in a distal to proximal manner. For light touch, you'll be again looking at a distal and more proximal comparing side to side. And I like to use a cold swab. Here we go. Let me know if you feel this and it feels about the same on both sides. Okay. Here and here. Feels the same? Yes. Here and here? Yes. Same and here and here was the same? For cold sensation, I like to use a cold tuning fork. I will ask Susan if she feels coldness. Here, I also like to screen for any type of perforopathy. Moving the cold tuning fork up the leg and asking if there's any difference in that cold sensation. Feel cold? Yes. On both sides. As I move it up, does it feel about the coolness? Yes. How about the side? A coldness? Yes. Okay. Next. Pinprick. Again, you can use an actual pinprick device or a broken tongue blade, looking for sharp, making it sharp. I will ask Susan if this feels sharp. First off? Yes. Make sure that it's not just pressure that you're feeling. Then comparing from side to side both in the distal and proximal groups. Sharp both sides is about the same here and here, here and here and here and here? Yes. If at any moment, you see that there's an asymmetry, or there's a difference between distal to proximal, you may want to do a more careful examination by going up the leg much like we did with the coal tuning fork. Does this feel about the same as I'm going up interms of the sharpness? Yes. Yeah. About the same? Yes. All right, same case, you may want to go up the back as well, looking for a level. The next step is cerebellar testing. This can also be done a number of different ways. Here we'll be looking at finger nose finger testing, looking for ataxic movements, or dysmetria where the underpoint or over point. Susan, using your index finger, can you touch your nose and touch my finger. I want you to go back and forth. You want to make sure they go fast enough, and that they're almost fully extending. Excellent. Can you do with the other side? And I'm moving so that there's no learning involved. Excellent. For cerebellar testing, the lower extremities, again, this can be tested a number of different ways. Here's one way. We'll do the [inaudible] test. Susan, with this heel here, I want you to start up here and rub it right straight down your shin. I'll here to your angle and then come back up again. Back up. Perfect. This case, what you're looking for is again an ataxia, ensure you're moving this way or overshoot if it come down way too fast or way too high. Okay. And you want to do this on both sides. The next part of the neurologic exam is gait testing. This is an important part of examination because it tests multiple nervous system functions at the same time. It also can lend to diagnosis that cannot otherwise be done. When we look at gait testing, we look at actually the initial stance of the patients, making sure that the bases, what we call normal base or narrow based and not wide based. Widebased stans may signify some disease process. Next, you'll be looking at walking, making sure that the normal stride length. It's about normal. You'll be looking if they're steady. Looking for any abnormalities in arm swing as well, ensuring that both arms are swinging normally and there's no posturing of the arms. At this moment, you can check for forced gait like tandem gait, which can also help with checking sensory and muscle weakness. For tandem gait, you want to have the patient sand toe to toe and walk at several feet. You will know in your elderly population that this may be difficult, but that is normal.