01.24 Thursday

01.24 Thursday - Thursday January 24th 2008 Case Study...

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Thursday, January 24 th , 2008 Case Study: seizures, from a rave club, don’t know history, heart rate = 100 (high), bp = 140/96 (high) body temp = 106 (high) -“special vitamins” = ecstacy - draw blood, look for electrolytes, administer benzodiazipan Na = 101, K = 3, Cl = 105, Ca = 5 Low sodium = natraemia HW: why benzodiazepine, why low sodium levels -drink lots and lots of water Recall: ECF ICF Na + 142 mEq/L Na + 110 mEq/L K + 4 mEq/L K + 140 mEq/L Cl - 104 mEq/L Cl - 4 mEq/L Ca +2 5 mEq/L Ca +2 1 mEq/L How are substances moved across a cell membrane? 1. Simple Diffusion- down concentration gradient 2. Facilitated Diffusion- diffusion through a protein (too big for simple diffusion) 3. Active Transport- low concentration to high concentration 4. Osmosis- diffusion of water If resting membrane potential deviates from the norm, it can result in serious effects (ie. seizures) Case Study: going to run a marathon. Suddenly collapse into a coma. Look at blood chemistry: high levels of potassium. -loss of water and electrolytes due to sweat
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01.24 Thursday - Thursday January 24th 2008 Case Study...

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