Fluid_and_Ion_Balance_Study_Questions

Fluid_and_Ion_Balance_Study_Questions - Fluid and Ion...

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Fluid and Ion Balance Study Questions (select the single BEST answer) 1. Which of the following is the water output that is closely regulated in order to maintain water balance in the body? A) water loss in urine B) insensible loss C) water loss in feces D) water loss in sweat 2. A de crease in extracellular fluid osmolarity causes an in crease in A) ADH B) thirst C) both A and B D) neither A nor B 3. Na + excretion would be increased the most when GFR ________ and Na + reabsorption ___________. A) decreases, increases B) increases, decreases C) decreases, decreases D) increases, increases 4. Which of the following changes angiotensin I to angiotensin II? A) renin B) aldosterone C) ADH D) angiotensin converting enzyme 5. Which of the following increases renin secretion? A) increased sympathetic nerve activity B) increased blood pressure in the kidney C) both A and B D) neither A nor B 6. ADH is also called _______________ because it ______________ total peripheral resistance. A) vasopressin, decreases B) angiotensin II, increases C) aldosterone, decreases D) renin, decreases E) vasopressin, increases 7. Which of the following decreases during hemorrhage? A) ADH B) thirst C) GFR D) aldosterone E) angiotensin II 8. Ingestion of 1 liter of isotonic saline will cause all of the following to increase except A) GFR B) Na + excretion C) stimulation of atrial volume receptors D) stimulation of arterial baroreceptors E) sympathetic nerve activity 9. Diuretics______________________ water loss in the urine. A) increase B) decrease 10. All of the following cause increased aldosterone except A) increased sympathetic nerve activity to the kidneys B) increased angiotensin II C) decreased extracellular fluid K + concentration 11. Aldosterone increases A) Na + reabsorption B) K + secretion C) both A and B D) neither A nor B 12. Which of the following is slowest acting (the body's 3rd line of defense) against changes in the body's pH, requiring hours to days to be fully effective? A) respiratory system B) chemical buffers C) kidneys 13. Ventilation _______ during metabolic acidosis. A) increases B) decreases 14. Ingestion of 1 liter of isotonic saline will increase all of the following EXCEPT A) extracellular fluid volume B) cardiovascular baroreceptor activity C) glomerular filtration rate (GFR) D) renin 15. If a drug is taken which blocks (prevents) the reabsorption of Na + , what will happen to the reabsorption of water? A) it increases B) it decreases C) nothing (no effect)
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16. Renin changes A) angiotensinogen to angiotensin I
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Fluid_and_Ion_Balance_Study_Questions - Fluid and Ion...

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