At a PaO2 of 65 mm Hg, what is the approximate saturation of Hb with O2?
a. 73%
b. 80%
c. 90%
d. 97%
ANS: C
If some abnormality reduced the PaO2 to 65 mm Hg, the SaO2 would still be approximately 90%.
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Which of the following is NOT determined during plans review?
A. Whether the proposed system is correctly designed B. Whether the proposed system is in proper working condition C. Whether the proposed system is appropriate for the type of occupancy D. Whether the proposed system is in compliance with NFPA® requirements
After you administer a medication through a metered-dose inhaler (MDI) and the patient has inhaled the medication, it is important that the patient:
A) Exhale through pursed lips B) Pant for 10 seconds C) Exhale as forcefully as possible D) Hold her breath for several seconds
Biopsy of a lesion of the buccal mucosa shows epithelial cells with hyperchromatic and pleomorphic nuclei. Abnormal mitotic figures are found at all levels in the epithelium. The basement membrane is intact. This is consistent with:
a. Lichen planus b. Leukoplakia c. Squamous cell carcinoma d. Carcinoma in situ e. Focal hyperkeratosis
A clear urine specimen is caused by a number of factors, including bacterial infection; white, red, or epithelial cells; yeast; or vaginal contaminants.
Answer the following statement true (T) or false (F)