The primary role of the phosphate buffer system is to?

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Quizlet Genitourinary System Questions

Question 1 of 5

The primary role of the phosphate buffer system is to?

Correct Answer: C

Rationale: The correct answer is C: limit pH changes caused by metabolic and fixed acids. 1. Phosphate buffer system consists of dihydrogen phosphate (H2PO4-) and hydrogen phosphate (HPO4^2-) ions, which can donate or accept H+ ions to maintain a stable pH. 2. Metabolic and fixed acids produced in the body can lead to pH changes. The phosphate buffer system helps to prevent drastic changes in pH by neutralizing excess H+ ions. 3. Options A, B, and D are incorrect because the phosphate buffer system is not specifically designed to buffer stomach acid, carbonic acid formed by carbon dioxide, or buffer the urine.

Question 2 of 5

A patient with cancer of the bladder has just returned

Correct Answer: A

Rationale: The correct answer is A because after surgery to create an ileal conduit for bladder cancer, monitoring urine output is crucial to assess kidney function and ensure proper drainage. Hourly monitoring helps to detect any complications early. Choice B is incorrect as it does not provide any relevant information. Choice C is incorrect because monitoring urine output is essential postoperatively. Choice D is incorrect as it does not address the immediate postoperative care needs of a patient with an ileal conduit.

Question 3 of 5

A patient with a sacral pressure ulcer has had a

Correct Answer: E

Rationale: Step-by-step rationale for the correct answer (E): 1. The prompt mentions a patient with a sacral pressure ulcer. 2. Considering the context, the most relevant issue would be wound care and prevention of pressure ulcers. 3. Option E is the only choice related to wound care and prevention, indicating the correct focus for the nurse. 4. Choices A, B, C, and D are unrelated to the primary concern of managing the sacral pressure ulcer. 5. Therefore, E is the correct answer as it aligns with the patient's immediate care needs.

Question 4 of 5

A nurse is preparing a patient diagnosed with benign

Correct Answer: A

Rationale: Rationale: 1. BPH can cause urinary symptoms. 2. Cystoscopy is a common diagnostic test. 3. Temporary complications include UTI or urinary retention. 4. BPH affects a significant number of nephrons. 5. Choice A aligns with BPH pathophysiology and common complications. Summary: - Choice A is correct due to BPH affecting nephrons and causing urinary symptoms leading to temporary complications like UTI. Other choices lack relevance to BPH or its complications.

Question 5 of 5

The staff educator is giving a class for a group of biopsy 12 hours ago. The presence of what assessment nurses new to the renal unit. The educator is discussing finding should prompt the nurse to notify the physician?

Correct Answer: B

Rationale: Step 1: Renal colic is a symptom of possible kidney stones or obstruction, which can lead to severe pain and require immediate medical attention. Step 2: Scant hematuria may be common after a biopsy and does not necessarily indicate an urgent issue. Step 3: Chronic glomerulonephritis in a 64-year-old patient is a chronic condition that may not require immediate physician notification. Step 4: A temperature of 100.2F orally is slightly elevated but not a critical finding that would warrant immediate physician notification. Summary: Renal colic is the correct answer as it indicates a potential urgent issue requiring immediate physician notification. Scant hematuria, chronic glomerulonephritis, and a slightly elevated temperature are not as concerning in this context.

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