A mixed venous blood sample is needed to determine the oxygen consumption of the tissues. The mixed venous blood sample should be obtained from the
A. left atrium.
B. pulmonary vein.
C. pulmonary artery.
D. superior vena cava.
Ans: C. pulmonary artery.
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Acromegaly is a result of
A) excess growth hormone secretion. B) excess cortisol secretion. C) deficient growth hormone secretion. D) deficient cortisol secretion.
The ____ system deploys an airbag from the lower section of the vehicle's dashboard during a frontal crash.
A. knee supplemental restraint B. frontal impact supplemental restraint C. side-impact supplemental restraint D. side-curtain supplemental restraint
The ESR is decreased in which of the following conditions?
A. rheumatic fever B. sickle cell anemia C. viral hepatitis D. multiple myeloma E. pregnancy
How many Medicare enrollees purchase some form of supplemental insurance?
A. One-fourth B. One-third C. One half D. Two-thirds