This procedure should, after some practice, take five minutes or less. DCS tends to show up after 30 to 60 minutes. Therefore, it is not necessary to administer the test immediately. It can follow the initial cleanup and storing of gear. It should be performed as a matter of routine but most certainly whenever a diver complains or indicates any kind of pain after a dive. Many divers try to shrug off a pain as 'just a little over exertion' this exam will often detect if it is just that or more. First ask the diver some general information questions - what is your name, where are you ... . You should be listening for abnormal speech and\or disorientation. Next hold up some fingers about 18" in front of the divers face and have the diver tell you how many. Change the number a few times and try to relax the diver by making this a little silly exercise. Then hold up one finger and ask the diver to follow your finger with their eyes while keeping their head still. Watch for any jerky motion of either or both eyes. This jerking motion is called nystagmus. We now move to the face. Put your fingertips against the divers jaw bone and have them clench their teeth. Then ask them to wrinkle their forehead. At this point instruct them to stick out their tongue and move it in all fout directions. Ask for a big smile. In all four of the above you are looking for the ability to perform each task and symetry of muscle use. We not move down to the shoulders. Have the diver tilt their head back and swallow, watch for movement of the adam's apple. Then place one hand on each shoulder and have the diver shrug. Finally place a hand on one side of the diver's face and have them push against your hand and then check the other side. To check hearing rub your fingers together near the diver's ear and have them identify the sound. They are to close their eyes as you move your hand away from their ear while continuing to make the sound. They need to let you know when\where they stop hearing it and then do the other side the same way. We now move to the rest of the body. With the diver dressed in light clothing and pockets empty explain that you are going to lightly run your fingertips over their body and they should feel a normal light touch which is eqaul on both sides of their bdies. They need to let you know if they do not feel your touch or if it is not even and where. If this occures try to zero in on exactly where it occured and you should plan to mark the area, this will be helpful for further medical examination. Have them close their eyes and begin tracing over their body from head to toe. Note that the neuro pathways of the hands and feet run with the bones so you need to trace from side to side rather than up and down. Try to overlap sections so as not to miss any area. Muscle tone is next. Have the diver place their fists together in front of their chest with their elbows parallel to the ground. Push gently against their elbows first down then up and have them push against your pressure. Next have them pull against you as you pull their fists away from their body and then reverse direction. Note: this is not a tug-of-war. :) Evaluate their grip by having them squeeze two fingers of each hand in their's. Have the diver sit and place a hand on their thigh and ask them to raise first one then other, apply some equal resistance. Finally have the diver lift a foot and place your hand beneath it and have them press down like riding a bicycle. Have the diver stand with their feet together and eyes closed for several seconds just let them stand still, then ask them to walk in place bringing each upper leg up to about parallel with the ground. Note: protect your diver against falling while doing these tests. The divers arms should be straight out in front of them while their walking. The last test involves having the diver alternately touch their nosetip and your finger which should be about 18" in front of their nose. Have the diver Place their index finger on their nose tip and then you finger. Have them change hands and repeat this several times. Note any lack of even responses or anything that appears abnormal. If you are properly trained and equipped take a blod pressure before and after each dive. It is a good idea to do a rapid field neuro while the diver is relaxed even a few days or more before a dive to establish a baseline to compare later results against. If anything appears abnormal further medical examination is called for and should be sought. This is not an advertisement for Diver Rescue International but rather a statement that their MedDive Class is not just for medical providers. If you do a lot of diving you or someone in your group could benefit everyone by taking the class. It spends a lot of time getting into diagnosis and treatment as well as the above and affords time to practice all the skills they have taught, you do not need to be a diver or have ever dove to take the class. I hope this will help and may it make your divers even safer! Any questions anyone has I will be delighted to answer or get an answer as I only know a few of them :). Coleman Sachs, SGT Boone County (KY) Water Rescue EMS Coordinator
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