Nucleated red blood cells (NRBCs) and immature white cells in a CSF most likely mean:
a. Bacterial meningitis
b. Patient has NRBCs in the peripheral blood
c. Subarachnoid hemorrhage
d. Bone marrow contamination
ANS: D
When immature bone marrow cells are seen in the CSF, it most likely means that bone marrow contamination of the specimen has occurred. If a significant number exist, then the CSF differential will be a reflection of what is in the marrow, not the CSF.
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Carbon dioxide exchanged for oxygen in the alveolus in the lungs is an example of:
A) internal respiration. B) anatomic ventilation. C) external respiration. D) oxyhemoglobin exchange.
When evaluating an AP pelvis radiograph, rotation into a slight LPO will cause the upside iliac crest to ____________ side-to-side, and the upside obturator foramen to ____________.
A. flare, close off B. flare, open C. foreshorten, close off D. foreshorten, open
Which of the following statements regarding your general survey of the patient is correct?
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What would the LVSWI index equal if SVI is 42 mL/beat/m2, MAP is 105 mm Hg, PCWP is 12 mm Hg?
a. 53 g m/ m2 c. 64g m/ m2 b. 42 g m/ m2 d. 73 g m/ m2