Which of the following does not demonstrate the use of a "blanket rule" for positioning and centering?
A. Applying a 5°-7° caudal angle for the lateral L5-S1 spot on all female patients
B. Applying a 3°-5° cephalad angle on a patient with thick thighs and buttocks instead of keeping the CR perpendicular to the IR for an AP knee projection
C. For a PA chest projection, placing the IR crosswise for all male patients and lengthwise for all female patients
D. Applying a 10° posterior angle for all AP foot projections to open the MTP joints
Answer: B
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Which of the following findings on a radiologic report would indicate the presence of a tension pneumothorax?
a. Bilateral inversion of diaphragm, long narrow heart, and flattened ribs b. Blunting of costophrenic angles, marked interstitial infiltrates, and apical free air c. Contralateral mediastinal shift, diaphrag-matic depression, and flattening of ribs d. Ipsilateral mediastinal shift, sail-shape noted right hemithorax, and marked inter-stitial infiltrates right sided
Cuspids are used for tearing and piercing, and an adult generally has six–one behind each set of incisors
Indicate whether the statement is true or false
The principle method used to measure hormone levels in blood in most clinical laboratories is:
A. Gas chromatography. B. Thin layer chromatography. C. Electrophoresis. D. Immunoassays.
When the platelets become sticky and adhere to the inner lining of an injured vessel, they are called a:
A. cascade B. seal C. platelet plug D. net