The pulse oximetry test is used to evaluate what?
a. Oxygen saturation in the blood
b. Oxygen saturation in the lungs
c. Oxygen saturation in the respiratory tract
d. None of the above
a
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How many grams of reserpine are needed to make 250,000 tablets, each containing 250 mcg of this drug?
3.25g 6.25g 8.15g 9.15g
Sarah had a unilateral exploration of the adrenal field. What is the appropriate ICD-9-CM procedure code?
A) 07.00 B) 07.01 C) 07.02 D) 07.19
A second-degree heart block, Mobitz type I, occurs when:
A) every other impulse generated by the SA node is blocked at the AV node and does not depolarize the ventricles. B) each successive impulse is progressively delayed, until one impulse is blocked from entering the ventricles. C) the PR interval progressively grows narrower, until there is a P wave that is not followed by a QRS complex. D) more than one successive impulse from the SA node is blocked at the AV node and is not allowed to enter the ventricles.
CPAP produces all of the following physiologic effects, EXCEPT:
A. dispersing thick secretions within the lung tissue. B. forcing interstitial fluid into the pulmonary circulation. C. pushing more oxygen across the alveolar membrane. D. opening collapsed alveoli and improving respiration.