A Physician Requests You Provide a Patient with Exactly 45

question 13

Short Answer

A physician requests you provide a patient with exactly 45% O₂ at a flow of 60 L/min. Lacking a blender, you must manually mix air and O₂ to achieve the desired mixture at the prescribed flow. Which of the following air and O₂ flows would you select?
$\begin{array}{ll}&\underline{\operatorname{Air}(\mathrm{L} / \mathrm{min})}&\underline{\mathrm{O}_{2}(\mathrm{~L} / \mathrm{min})}\\\text { A. } &42 & 18 \\\text { B. } &35 & 25 \\\text { C. } &48 & 12 \\\text { D. } &30 & 30\end{array}$

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Definitions:

Zoospore

A flagellated motile spore produced asexually by chytrids, certain algae, water molds, and other protists.

Antibiotics

Medicinal substances used to treat bacterial infections by either killing bacteria directly or inhibiting their growth.

Chytrid

A group of mostly aquatic fungi that play a role in decomposing organic matter and can sometimes be harmful to amphibians.

Chitin

A long-chain polymer of N-acetylglucosamine, a derivative of glucose, forming a hard, protective exoskeleton in arthropods and cell walls of some fungi.