Which of the following are causes of hypotension? 1. Heart failure 2. Hypovolemia 3. Mild tachycardia 4. Peripheral vasoconstriction
a. 2 and 4 only
b. 1, 2, and 4 only
c. 3 and 4 only
d. 1, 2, 3, and 4
ANS: B
The usual causes are left ventricular failure, low blood volume, and peripheral vasodilation.
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Educational brochures can come from a variety of vendors or made in the office, but no matter where they are generated, they must
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A left lateral lumbar projection with poor positioning demonstrates rotation. The posterior ribs that are most magnified and projected inferiorly are rotated anteriorly. How should the patient be repositioned for an optimal projection to be obtained?
a. Rotate the patient's right side posteriorly. b. Angle the central ray caudally. c. Rotate the patient's left side posteriorly. d. Position the vertebral column parallel with the imaging table.