A device that is used to record the heart's electrical activity is known as:
A. an electrocardiogram (ECG)
B. an MRI
C. a CT scan
D. tomography
a
Rationale: An electrocardiogram (ECG) is a device that is used to record the heart's electrical activity. It measures electrical activity across the myocardium.
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Which of the following injuries is most serious, warranting immediate and rapid transport to the hospital?
A) Instability and crepitus to the left lateral chest wall B) Deformity to the right ankle with pain rated as a 10/10 C) Open fracture to the left lower leg D) Large, deep laceration to the arm with bone visible
The ____________________ nervous system consists of the nerves that originate in the brain (cranial nerves) or spinal cord (spinal nerves) and reach out to the body.
Fill in the blank(s) with the appropriate word(s).
A resulting relative risk of two indicates that the rate above the fraction line is four times as large as the rate below the fraction line.
Answer the following statement true (T) or false (F)
Two primary tests that are performed on surgical patients to evaluate blood and blood cells are ________________________
A. CBC and differential leukocyte count B. cardiac enzyme and glucose level studies C. urinalysis and electrolyte study D. type and cross-match and type and screen