Which is the hormone that stimulates the release of aldosterone from the adrenal cortex.
Renin.
Angiotensin I.
Angiotensin II.
Antidiuretic hormone (ADH).
The Correct Answer is C
Angiotensin II is a hormone that stimulates the adrenal cortex to release aldosterone. Aldosterone is a hormone that helps regulate blood pressure by increasing the reabsorption of sodium and water and the excretion of potassium by the kidneys.
Choice A is wrong because renin is not a hormone but an enzyme that catalyzes the conversion of angiotensinogen to angiotensin I1.
Choice B is wrong because angiotensin I is an inactive precursor of angiotensin II that is converted by angiotensin-converting enzyme (ACE) in the lungs.
Choice D is wrong because antidiuretic hormone (ADH) is a hormone that regulates water balance by increasing the reabsorption of water by the kidneys, but it does not affect aldosterone secretion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This is because urinary catheters are a common source of catheter associated urinary tract infections (CAUTIs), which can lead to complications such as pyelonephritis, sepsis, and renal failure. Therefore, the nurse should remove the catheter as soon as possible to reduce the risk of infection and promote normal urinary function.
Choice B is wrong because ensuring that the catheter is properly secured to prevent accidental dislodgement is not a priority intervention for a patient with a urinary catheter.
While this is an important nursing action to prevent trauma and bleeding, it does not address the main complication of catheterization, which is infection.
Choice C is wrong because encouraging the patient to drink fluids to prevent dehydration is not a priority intervention for a patient with a urinary catheter.
While this is a good nursing practice to maintain hydration and renal perfusion, it does not affect the risk of infection associated with catheterization.
Choice D is wrong because administering antibiotics to prevent infection is not a priority intervention for a patient with a urinary catheter.
While this may be indicated for some patients who have signs and symptoms of UTI or who are at high risk of infection, it is not a routine measure for all patients with catheters and may contribute to antibiotic resistance.
Correct Answer is A
Explanation
Sodium is the major extracellular electrolyte in the body.
It is responsible for maintaining the extracellular fluid volume, and also for regulation of the membrane potential of cells.
Sodium is exchanged along with potassium across cell membranes as part of active transport.
Choice B is wrong because potassium is mainly an intracellular ion.
It is important for nerve and muscle function, but it is not the predominant electrolyte in the extracellular fluid.
Choice C is wrong because calcium is not the major electrolyte in the extracellular fluid.
Calcium is mostly found in bones and teeth, where it forms a mineral reserve with phosphate.
Calcium also plays a role in muscle contraction, blood clotting, and enzyme activity.
Choice D is wrong because magnesium is not the major electrolyte in the extracellular fluid.
Magnesium is mostly found in bones, where it helps to stabilize the structure of ATP2.
Magnesium also participates in enzyme reactions, nerve and muscle function, and protein synthesis.
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