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A 47-Year-Old Man Is Brought to the Emergency Department by His

question 44

Multiple Choice

A 47-year-old man is brought to the emergency department by his wife due to a 2-day history of lightheadedness and generalized weakness. The patient nearly lost consciousness on 2 occasions and has been unable to get out of bed since this morning. He has no chest pain, headaches, or nausea. Other medical problems include chronic low back pain, type 2 diabetes mellitus with evidence of retinopathy and proteinuria, and hypertension for which he was recently started on losartan. His other medications include ibuprofen, amitriptyline, and low-dose aspirin.
On examination, he appears lethargic with mild muscle weakness in both lower extremities. Initial blood pressure is 105/80 mm Hg.
His rhythm strip is shown here.
Which of the following is the most likely cause of this patient's symptoms?

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Definitions:

Trained Introspection

A method in psychology where individuals are trained to carefully observe and report their own thoughts, feelings, and sensations.

Wilhelm Wundt

A German psychologist who is considered the father of experimental psychology.

Sensations

The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.

Structuralism

An early school of psychology that sought to understand the structure of the mind by analyzing the basic components of thoughts and sensations.