The American Society for Testing and Materials (ASTM)and the International

question 33

Multiple Choice

The American Society for Testing and Materials (ASTM) and the International Standards Organization (ISO) recommend that manual resuscitators be capable of delivering a minimum fractional inspired oxygen (FɪO₂) of _____ with an oxygen flow of ______ L/min.

• A) 1.00; 12
• B) 0.95; 20
• C) 0.85; 15
• D) 0.50; 10

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Definitions:

Active Transport

Use of a plasma membrane carrier protein to move a molecule or ion from a region of lower concentration to one of higher concentration; it opposes equilibrium and requires energy.

Diffusion

Movement of molecules or ions from a region of higher to lower concentration; it requires no energy and tends to lead to an equal distribution (equilibrium).

Urinary System

Organ system of humans that includes the kidneys, urinary bladder, and associated structures; excretes metabolic wastes; maintains fluid balance; helps control pH.

Blood Ph

The measure of acidity or alkalinity of blood, maintained within a very narrow range, essential for physiological processes.