How many pulmonary veins empty into the left atrium?
A. 8
B. 4
C. 2
D. 0
Answer: B
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Hemoglobin C disease has altered solubility properties similar to hemoglobin S disease. What accounts for this altered solubility?
a. Heme iron is in the ferric form rather than ferrous form. b. The hemoglobin remains in the tense structure. c. A nonpolar amino acid is substituted for a polar amino acid. d. A polar amino acid is substituted near the pocket where heme binds.
Which of the following automatic feed systems are used to regulate water levels when using a humidifier with a continuous feed system?
1. Leveling reservoirs 2. Flotation controls 3. Optical sensors a. 2 and 3 only b. 1 and 2 only c. 1, 2, and 3 d. 1 and 3 only
Most WC insurance agency's follow a:
a. normal doctor's office payment policy. b. fee schedule. c. employer-defined fee for treatment. d. arbitrary fee determination.
In children born prematurely, malnutrition during enamel formation may result in permanent enamel defects in the primary dentition
Indicate whether the statement is true or false