, Test Bank For Mosbys Respiratory Care Anatomy
and Physiology 3rd Edition Foundations for Clinical
Practice VERSION
Which of the following has no effect on oxyhemoglobin dissociation?
A. Epinephrine
B. Fever
C. Thyroid hormone
D. Low pH
E. Erythrocyte count - E. erythrocyte count
In the air we breathe, which gas is found in the highest concentration?
A. Oxygen
B. Water vapor
C. Nitrogen
D. Carbon dioxide
E. Hydrogen - C. nitrogen
Each hemoglobin molecule can transport up to _____ oxygen molecules.
A. 6
B. 2
C. 3
D. 4
E. 5 - D. 4
Normally, the systemic arterial blood has a PO2 of ______ mm Hg, a PCO2 of _____
mm Hg, and a pH of ______ .
A. 40; 95; 7.4
B. 95; 40; 7.4
C. 7.4; 40;95
D. 95; 7.4; 40
E. 40; 7.4; 95 - B. 95; 40; 7.4
Which of the following enzymes in an RBC breaks H2CO3 down to water and carbon
dioxide?
A. Hemoglobinase
B. Carboxyhemoglobinase
C. Carbonic anhydrase
D. Bisphosphoglycerase
E. Carbaminoreductase - C. carbonic anhydrase
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