Nursing Elites

1. The renin-angiotensin-aldosterone system plays an important role in maintaining blood pressure. Which compound in this system is most powerful at raising blood pressure?

• A. Angiotensin I
• B. Angiotensin II
• C. Angiotensin III
• D. Renin

Correct answer: B

Rationale: Angiotensin II is the most potent compound in the renin-angiotensin-aldosterone system for raising blood pressure. It acts as a powerful vasoconstrictor, leading to increased systemic vascular resistance. Angiotensin II is formed from angiotensin I through the action of the angiotensin-converting enzyme. While renin initiates the cascade by converting angiotensinogen to angiotensin I, it is angiotensin II that exerts the strongest pressor effect.

2. Which assessment finding, after the dialysate is drained during peritoneal dialysis for a child experiencing acute renal failure, would warrant further action by the nurse?

• A. The dialysate is clear upon return.
• B. The volume of drained dialysate is less than the volume infused.
• C. The child is restless and eager to play.
• D. The child's vital signs remain consistent with those noted during infusion.

Correct answer: B

Rationale: A lower volume of drained dialysate compared to the volume infused suggests a possible obstruction or malfunction in the dialysis process. This finding could compromise the effectiveness of the treatment and needs prompt assessment and intervention by the nurse to ensure the child's safety and well-being. Choices A, C, and D are not indicative of complications during peritoneal dialysis. The clarity of the dialysate, the child's behavior, and the consistency of vital signs are not alarming findings that would require immediate action by the nurse.

3. What is the probable cause recognized by the nurse when a 5-year-old boy is admitted to the hospital with acute glomerulonephritis?

• A. Recovery from German measles 2 months ago
• B. Dysuria since the previous night
• C. A history of allergy
• D. A sore throat 2 weeks ago

Correct answer: D

Rationale: Acute glomerulonephritis typically develops 1 to 3 weeks after a streptococcal infection, such as a sore throat, which triggers an allergic-type response that affects the glomeruli's function. This immune response leads to inflammation and damage to the glomeruli, resulting in acute glomerulonephritis.

4. A child is being assessed for acute poststreptococcal glomerulonephritis (APSGN). Which of the following findings should the nurse expect?

• A. Hematuria
• B. Polyuria
• C. Hypertension
• D. Diarrhea

Correct answer: C

Rationale: In acute poststreptococcal glomerulonephritis (APSGN), hypertension is a common finding due to fluid retention and decreased kidney function. This condition often presents with hypertension as a result of sodium and water retention, as well as reduced glomerular filtration rate. Hematuria, not diarrhea, is also a common symptom of APSGN due to inflammation and damage to the glomeruli. Polyuria, an increase in urine output, is not a typical finding in APSGN unless severe kidney damage leads to decreased urine concentrating ability.

5. A nurse assesses a male patient who has developed gynecomastia while receiving treatment for peptic ulcers. Which medication from the patient�s history should the nurse recognize as a contributing factor?

• A. Amoxicillin (Amoxil)
• B. Cimetidine (Tagamet)
• C. Metronidazole (Flagyl)
• D. Omeprazole (Prilosec)

Correct answer: B

Rationale: Cimetidine binds to androgen receptors, producing receptor blockade, which can cause enlarged breast tissue, reduced libido, and impotence. All these effects reverse when dosing stops. Amoxicillin, metronidazole, and omeprazole are not associated with gynecomastia.

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