increased calcium levels in the blood could be due to an imbalance of which of the following hormones
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ATI RN

ATI Pathophysiology Exam 3

1. An imbalance of which of the following hormones could lead to increased calcium levels in the blood?

Correct answer: A

Rationale: The correct answer is Parathyroid hormone (Choice A). Parathyroid hormone plays a key role in regulating calcium levels in the blood. When there is an imbalance in parathyroid hormone secretion, it can lead to increased calcium levels in the blood. Antidiuretic hormone (Choice B) is involved in regulating water balance, not calcium levels. Calcitonin (Choice C) helps lower blood calcium levels and is unlikely to cause an increase. Melatonin (Choice D) regulates sleep-wake cycles and does not have a direct effect on calcium levels in the blood.

2. A 50-year-old female was diagnosed with sideroblastic anemia. Which of the following assessment findings would most likely occur?

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.

3. Which of the following characteristics is common in both malignant and benign tumors?

Correct answer: A

Rationale: The correct answer is A: Uncontrolled cell growth. This characteristic is common to both malignant and benign tumors. Benign tumors are non-cancerous growths that do not invade nearby tissue or spread to other parts of the body. Therefore, choices B, C, and D are incorrect. Rapid growth, metastasis, and invasion of surrounding tissue are characteristics typically associated with malignant tumors.

4. A patient is receiving chloroquine (Aralen) for extraintestinal amebiasis. Which of the following medications should be administered with chloroquine?

Correct answer: B

Rationale: The correct answer is B: Metronidazole (Flagyl). When treating extraintestinal amebiasis, chloroquine is often used in combination with metronidazole to ensure the eradication of the parasite. Metronidazole helps to target the infection more effectively. Choices A, C, and D are incorrect. Iodoquinol (Yodoxin) is another antiprotozoal agent but is not typically used in combination with chloroquine for amebiasis. Metyrosine (Demser) is used in the management of pheochromocytoma, and carbamazepine (Tegretol) is an anticonvulsant and mood-stabilizing drug, neither of which are indicated for extraintestinal amebiasis.

5. After ingestion of cysts, how long does it take for the symptoms of giardiasis to develop?

Correct answer: B

Rationale: Giardiasis symptoms typically develop 3 to 5 days after ingestion of the cysts. This timeframe aligns with the incubation period of the Giardia parasite. Choice A (12 to 24 hours) is too short for giardiasis to manifest. Choice C (1 to 2 weeks) and choice D (2 to 3 months) represent durations that are not consistent with the usual onset of symptoms in giardiasis.

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