Which type(s) of contrast media is/are employed in CT?
A. Water soluble iodinated
B. Barium mixture
C. a and b
D. Neither a nor b
Answer: C
You might also like to view...
You have decided to ascend to the summit of Mount Everest where the partial pressure of oxygen in the atmosphere has been estimated to be about 54 mmHg. Once you breathe in this air, the partial pressure of oxygen in the alveoli drops even lower, due to displacement by the partial pressure of carbon dioxide and water vapor. The arterial concentration of oxygen at the pulmonary capillaries is measured and found to be 25 mmHg. What is the percent saturation of hemoglobin at this partial pressure?
A. 98% B. 83% C. 18 % D. 45%
Edema is not favored when
A) the plasma concentration of albumin is reduced. B) endothelial permeability goes up. C) capillary hydrostatic pressure is elevated. D) interstitial fluid movement increases. E) liver damage decreases production of blood proteins.
Each hemoglobin molecule can transport up to ________ oxygen molecules.
A. 6 B. 4 C. 3 D. 5 E. 2
Rigor mortis affects skeletal muscles a few hours after death, due to
A. a decrease in ATP and increased permeability to calcium. B. an increase in ATP and decreased permeability to calcium. C. impulses that produce sustained contractions. D. an increase in ATP.