One of the physiological goals of NIV in acute respiratory failure is to improve gas exchange by ______________

a. resting the respiratory muscles
b. decreasing the effect of secretions
c. increasing right ventricular preload
d. decreasing the functional residual capacity


ANS: A
The physiological goal in acute respiratory failure is to improve gas exchange by resting the res-piratory muscles and increasing alveolar ventilation.

Health Professions

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Rx: Hydrocortisone 1.75% cream 30 gm. You will prepare the prescription by mixing hydrocortisone 2.5% and hydrocortisone 1% cream. How much hydrocortisone 2.5% cream would be needed?

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Although coherent scattering is most likely to occur ____________, some of this unmodified scattering occurs throughout the diagnostic range and may result in small amounts of radiograph-ic fog.

a. at less than 10 keV b. between 30 keV and 60 keV c. between 60 keV and 90 keV d. above 100 keV

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Determine the dosage to administer. Ordered:      erythromycin 400 mg PO, bidOn hand:      erythromycin 200 mgGiven:            __________

What will be an ideal response?

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