Hypercalcemia And Hypocalcemia! Quiz
13 Questions
| Total Attempts: 558
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Questions and Answers
- 1.A 40 year old man is seen as a new patient to establish care. He has no complaints. His past medical history is negative. Baseline laboratory studies are significant for serum calcium of 11.5 mg/dL. Physical examination is normal. What is the most common cause of asymptomatic hypercalcemia?
- 2.A 40-year-old man is seen as a new patient to establish care. He has no complaints. His past medical history is negative. Baseline laboratory studies are significant for serum calcium of 11.5 mg/dL. Physical examination is normal. In the above scenario, would this patient's parathyroid hormone level be:
- A.
High
- B.
Normal
- C.
Low
- 3.A 40-year-old man is seen as a new patient to establish care. He has no complaints. His past medical history is negative. Baseline laboratory studies are significant for serum calcium of 11.5 mg/dL. Physical examination is normal. This patient's phosphate level would be:
- A.
High
- B.
Normal
- C.
Low
- 4.A 60-year-old man presents with complaints of fatigue and weakness for over 1 month. His past medical history is negative. His physical exam is significant for memory and cognitive defects. His labs are calcium 15.0 mg/dL and phosphate of 2.3 mg/dL. Predict the parathyroid hormone values if this patient's hyercalcemia were due to Primary hyperparathyroidism.
- 5.A 60-year-old man presents with complaints of fatigue and weakness for over 1 month. His past medical history is negative. His physical exam is significant for memory and cognitive defects. His labs are calcium 15.0 mg/dL and phosphate of 2.3 mg/dL. Predict the parathyroid hormone values if this patient's hypercalcemia were due to malignancy.
- 6.A 60-year-old man presents with complaints of fatigue and weakness for over 1 month. His past medical history is negative. His physical exam is significant for memory and cognitive defects. His labs are calcium 15.0 mg/dL and phosphate of 2.3 mg/dL. Predict the parathyroid hormone values if this patient's hypercalcemia were due to vitamin D intoxication.
- 7.A 60-year-old man presents with complaints of fatigue and weakness for over 1 month. His past medical history is negative. His physical exam is significant for memory and cognitive defects. His labs are calcium 15.0 mg/dL and phosphate of 2.3 mg/dL. Predict the parathyroid hormone values if this patient's hypercalcemia were due to granulomatous disorders.
- 8.A 60-year-old man presents with complaints of fatigue and weakness for over 1 month. His past medical history is negative. His physical exam is significant for memory and cognitive defects. His labs are calcium 15.0 mg/dL and phosphate of 2.3 mg/dL. Predict the parathyroid hormone values if this patient's hyercalcemia were due to hyperthyroidism.
- 9.The most important action of vitamin D is to stimulate:
- A.
Calcium deposition in bone
- B.
Calcium resorption from bone
- C.
Calcium absorption from the GI tract
- D.
Calcium resorption in the renal tubule
- 10.Parathyroid hormone stimulates phosphate secretion in the proximal tubule. True or false.
- A.
True
- B.
False
- 11.In response to a sudden decrease in plasma calcium, where do most of the calcium come from to restore plasma levels?
- A.
The renal tubues
- B.
Bone
- C.
The GI tract
- 12.When a reduction in parathyroid hormone stimulates the kidneys to increase excretion of calcium, they do so by what mechanism?
- A.
Increased glomerular filtration
- B.
Reduced absorption in the proximal tubule
- C.
Increased secretion in the distal tubules
- D.
Increased reabsorption in distal tubule
- 13.Chronic failure of the kidneys leads to what problem?
- A.
High plasma parathyroid hormone
- B.
Low plasma phosphate
- C.
Inability to transfer calcium from bone to the blood
- D.
High plasma vitamin D
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