ATI RN
WGU Pathophysiology Final Exam
1. A patient receiving isoniazid (INH) and rifampin (Rifadin) has a decreased urinary output and decreased sensation in his great toes. Which laboratory values should be assessed?
- A. Hematocrit and hemoglobin
- B. ALT and AST
- C. Urine culture and sensitivity
- D. Erythrocyte count and differential
Correct answer: C
Rationale: In a patient receiving isoniazid (INH) and rifampin (Rifadin) with symptoms of decreased urinary output and decreased sensation in great toes, assessing urine culture and sensitivity is crucial. These symptoms could indicate peripheral neuropathy, a known side effect of isoniazid, and rifampin can cause renal toxicity. Checking for any urinary tract infection or drug-induced nephrotoxicity is important. Choices A, B, and D are incorrect as they do not directly address the symptoms presented by the patient or the potential side effects of the medications mentioned.
2. Which of the following describes the type of incontinence due to an increase in intraabdominal pressure such as coughing, sneezing, and laughing?
- A. Overflow
- B. Stress
- C. Mixed
- D. Functional
Correct answer: B
Rationale: The correct answer is B: Stress. Stress incontinence occurs when there is an increase in intraabdominal pressure, for example, during activities like coughing, sneezing, or laughing, leading to urine leakage. This type of incontinence is specifically triggered by physical movements or activities that put pressure on the bladder. Choices A, C, and D are incorrect because overflow incontinence is characterized by the bladder not emptying properly, mixed incontinence is a combination of stress and urge incontinence, and functional incontinence is typically due to physical or cognitive impairments.
3. Rhabdomyolysis can result in serious complications. In addition to muscle pain and weakness, a patient will complain of:
- A. paresthesias.
- B. bone pain.
- C. dark urine.
- D. diarrhea.
Correct answer: C
Rationale: Dark urine is a classic symptom of rhabdomyolysis. When muscle breakdown occurs, myoglobin is released into the bloodstream and filtered by the kidneys, leading to dark urine. Paresthesias (choice A) refer to abnormal sensations like tingling or numbness and are not typically associated with rhabdomyolysis. Bone pain (choice B) is not a prominent symptom of rhabdomyolysis. Diarrhea (choice D) is not a common complaint in rhabdomyolysis cases and is not directly related to muscle breakdown.
4. What aspect of hormonal contraceptives places a woman at the greatest risk for the development of blood clots?
- A. Hormonal contraceptives increase serum triglyceride and cholesterol levels.
- B. Hormonal contraceptives increase platelet levels.
- C. Hormonal contraceptives increase blood levels of clotting factors.
- D. Hormonal contraceptives cause injury to blood vessel linings.
Correct answer: C
Rationale: The correct answer is C. Hormonal contraceptives increase blood levels of clotting factors, particularly factors II, VII, IX, and X. This elevation in clotting factors can predispose individuals to thromboembolic events, including blood clots. Choices A, B, and D are incorrect because hormonal contraceptives do not have a significant effect on serum triglycerides and cholesterol, platelet levels, or causing direct injury to blood vessel linings as the primary mechanism for clot formation.
5. A 50-year-old female was diagnosed with sideroblastic anemia. Which of the following assessment findings would most likely occur?
- A. Bronze-colored skin
- B. Decreased iron
- C. Normochromic erythrocytes
- D. Aplastic bone marrow
Correct answer: A
Rationale: The correct answer is A: 'Bronze-colored skin.' Sideroblastic anemia is characterized by excess iron deposition, leading to bronze-colored skin. This occurs due to the abnormal accumulation of iron in tissues. Choices B, C, and D are incorrect because sideroblastic anemia does not typically present with decreased iron levels, normochromic erythrocytes, or aplastic bone marrow.
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