A 50-Year-Old Man Is Seen in the Office for New-Onset

question 97

Multiple Choice

A 50-year-old man is seen in the office for new-onset constipation.  Family history is unremarkable.  Vital signs are within normal limits.  Physical examination reveals normal findings.  Serum laboratory results are as follows: Which of the following is the most likely mechanism causing this patient's low serum phosphate?

• A)Decreased phosphate reabsorption in proximal tubules
• B)Increased bone deposition of phosphorus
• C)Increased fecal loss of phosphorus
• D)Increased phosphate secretion in distal tubules
• E)Transcellular shift of phosphorus into the cells

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Definitions:

Peripherally Inserted Central Line

A long, thin tube that is inserted into a peripheral vein, typically in the arm, to administer medication or nutrients.

Kübler-Ross' Stages

A framework outlining five stages of grief (denial, anger, bargaining, depression, acceptance) experienced by those facing significant loss.

Terminal Disease

A condition or illness that is progressive and incurable, inevitably leading to death.

Anger

A strong feeling of annoyance, displeasure, or hostility.