Quiz 02 - 1 of 14 Question Inhibiting the Na+-H+ exchanger...

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1 of 14 Inhibiting the Na + -H + exchanger (NHE) on the luminal membrane of proximal tubular epithelial cells would be expected to: A. Decrease ammonium excretion B. Decrease urinary pH C. Increase bicarbonate reabsorption D. Increase plasma pH Question 2 of 14 A patient has overdosed on a drug that is a weak acid (HA) with a pKa of 7.4. The non-ionized form of the drug can cross membranes easily. If the patient’s urine pH is 5.4, making the urine pH more alkaline will: A. Decrease drug excretion B. Increase drug excretion C. Not change drug excretion D. Not be possible: urine pH cannot be made more alkaline than pH=7.4 Question 3 of 14 Which of the following ions is reabsorbed primarily in the loop of Henle? A. Calcium B. Magnesium C. Phosphorus D. Potassium Question 4 of 14 A patient with congestive heart failure and insulin-dependent diabetes takes a β antagonist and an ACE inhibitor regularly. He then develops an infection and stops taking his insulin although he continues his
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Quiz 02 - 1 of 14 Question Inhibiting the Na+-H+ exchanger...

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