A 67-Year-Old Man Comes to the Emergency Department with Low-Grade

question 82

Multiple Choice

A 67-year-old man comes to the emergency department with low-grade fevers and fatigue.  He has no history of heart disease.  His temperature is 38.4 C (101.1 F) , blood pressure is 117/76 mm Hg, pulse is 82/min, and respirations are 14/min.  On examination, there is a diastolic murmur at the left sternal border.  He has nontender erythematous macules on his hands and feet.  Blood cultures show gram-positive cocci that are catalase-negative and able to grow in hypertonic (6.5%) saline and bile.  This patient's medical history is most likely to include which of the following procedures within the past month?

• A)Cystoscopy
• B)Dental extraction
• C)Nasal polypectomy
• D)Sinus drainage
• E)Skin biopsy

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Definitions:

Myelin Sheaths

Insulating layers that form around nerves, including those in the brain and spinal cord, which enable faster transmission of electrical impulses.

Sympathetic Nervous System

A part of the autonomic nervous system that activates the body's fight-or-flight response during perceived threats.

Parasympathetic Nervous System

Part of the autonomic nervous system responsible for conserving energy and promoting a state of calm and rest in the body.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out neural signals.