A lateral lumbar projection demonstrates closed L4-5 and L5-S1 intervertebral disk spaces. How should the positioning setup be adjusted for an optimal projection to be obtained?
1. Angle the central ray until it parallels the interiliac line.
2. Rotate the patient into a true lateral position.
3. Align the central ray perpendicular to the L5-S1 vertebral column area.
4. Align the vertebral column parallel with the imaging table.
a. 1 and 4 only
b. 2 only
c. 3 and 4 only
d. 1, 3, and 4 only
D
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Which of the following are the abdominal regions created by drawing two imaginary lines intersecting at the navel?
A) Abdominal planes B) Abdominal sextants C) Abdominal regions D) Abdominal quadrants
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Changes depicted on a 12-lead EKG that are indicative of myocardial ischemia are:
A) ST segment depression B) ST segment elevation C) pathologic Q waves D) flipped QRS complex
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