Term
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Definition
| volume of plasma cleared of a particular substance per minute |
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Term
| what is the (normal) plasma clearance of glucose? sodium? waste? |
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Definition
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Term
| what is the equation for plasma clearance? |
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Definition
| (urine concentration of substance)(urine flow rate)/plasma concentration of substance |
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Term
| what is the unit for clearance rate? |
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Definition
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Term
| if the macula densa cells detect high levels of sodium, what do they secrete? |
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Definition
| Adenosine>>>afferent arteriole>>>constriction>>>lower GFR |
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Term
| where does glucose reabsorption occur? |
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Definition
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Term
| with the reabsorption of glucose in the pct, what is also reabsorbed? |
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Definition
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Term
| what is the process of glucose reabsorption fueled by? |
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Definition
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Term
| what's the difference between regulation of absorption of glucose and phosphate? |
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Definition
glucose: will reabsorb as much glucose as possible (300-375 mg/100 ml)
phosphate:regulates it. can cause levels to go up and down |
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Term
| as the filtrate moves from the pct to the descending limb, what is the concentration? |
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Definition
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Term
| if a cell had a sodium-chloride-potassium pump in it, which part of tubule would it be? |
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Definition
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Term
| which cells does lasix act on? |
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Definition
| the cells of the thick ascending limb (cells that have sodium-potassium-chloride pump) |
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Term
| where does angiotensin I turn into angiotensin II? |
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Definition
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Term
| 2 substances that can estimate GFR by their plasma clearance levels |
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Definition
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Term
| what can plasma clearance of PAH be used to measure and why? |
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Definition
| renal plasma flow bc all of it ends up in the filtrate (filtered, not reabsorbed, all of it secreted) |
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