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Activation of the renin-angiotensin-aldosterone system:

A.

Causes albuminuria

B.

Reabsorbs K⁺ and eliminates Na⁺ in the urine

C.

Expands blood volume, increasing blood pressure

D.

Causes hematuria

Answer and Explanation

The Correct Answer is C

A. Causes albuminuria: Albuminuria (protein in urine) is a sign of kidney damage, not a direct effect of RAAS activation.

B. Reabsorbs K⁺ and eliminates Na⁺ in the urine: RAAS does the opposite-it reabsorbs sodium and excretes potassium.

C. Expands blood volume, increasing blood pressure: RAAS activation leads to vasoconstriction and sodium/water retention, which raises blood pressure.

D. Causes hematuria: Hematuria (blood in urine) is typically a sign of trauma, infection, or kidney disease-not directly linked to RAAS.


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Related Questions

Correct Answer is B

Explanation

A. Nothing, it's just a pass through to the next structure: The stomach plays a critical role in digestion through mixing and secretion of gastric juices.

B. Gastric juices mix with the food and the stomach muscles squeeze it: This process forms chyme through mechanical (squeezing) and chemical (acid/enzymes) digestion.

C. The food moves quickly into the small intestine: Food stays in the stomach for a period of time for processing before gradually passing into the small intestine.

D. The food is completely digested and is absorbed by tiny blood vessels in the walls of the stomach: Most digestion and nutrient absorption occur in the small intestine, not the stomach.

Correct Answer is D

Explanation

A. “This test will inform your provider if you are anemic.” Hemoglobin and hematocrit levels are used to assess anemia, not creatinine.

B. “This test will inform your provider if you have a thyroid disorder.” TSH and T3/T4 levels assess thyroid function, not creatinine.

C. “This test will inform your provider if you have an infection.” Infection is usually assessed by WBC count, CRP, or cultures, not creatinine.

D. “This test will inform your provider how your kidneys are functioning.” Serum creatinine is a reliable indicator of renal function; it reflects the kidney’s ability to clear waste.

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