A falling blood pH and a rising concentration of carbon dioxide due to emphysema, indicate
A. metabolic acidosis.
B. metabolic alkalosis.
C. respiratory acidosis.
D. respiratory alkalosis.
E. None of these choices is correct.
C
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Which of the following is not true of phospholipids?
a. The molecule contains three fatty acids. b. The molecule has a water-attracting part. c. The molecule has a water-repelling part. d. It is important in the structure of the cell membrane.
A 52-year-old woman was diagnosed with leukemia and has been receiving chemotherapy as an outpatient. She tells the RN that she hasn't been feeling well. The patient's skin is warm to the touch and she has a low-grade fever of 100.2°F
The neutrophil blood count is less than 1000/?l. The nurse is concerned about the possibility of infection because of the neutropenia and low-grade fever. Explain why. What will be an ideal response
The first means by which ATP is produced at the onset of contractile activity is
a. transfer of energy and phosphate from creatine phosphate to ADP b. oxidative phosphorylation c. glycolysis d. degradation of myoglobin e. none of these
After activation of C3 of the complement system, which of these is a role of its component part, C3b?
A. It acts as an enzyme to convert nitric oxide into hydrogen peroxide. B. It causes vasodilation of local blood vessels. C. It acts as a chemotaxin for macrophages. D. It stimulates the conversion of monocytes to neutrophils. E. It acts as an opsonin that is recognized by phagocytes targeting the microbe for destruction.