What factor would limit the ability of the H2CO3/HCO3– buffer system to perform efficiently?

a. Temperature rise of more than 3° C
b. Inadequate amount of 2,3-DPG in the blood
c. Increased production of nonvolatile acids
d. Lungs failing to excrete adequate levels of CO2


ANS: D
For example, volatile acid (H2CO3) accumulates only if ventilation cannot eliminate CO2 fast enough to keep up with the body's CO2 production.

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___________________ are ST-segment depressions seen on the 12-lead ECG in leads that face the wall opposite of those with ST-segment elevations.

Fill in the blank(s) with the appropriate word(s).

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Subtract the following fractions and mixed numbers. Express answers as a mixed number when possible and in the lowest terms

12 1/18 - 5 5/6 = __________ Fill in the blank(s) with correct word

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Which statement is correct?

A) Data are based on facts. B) Data are collected at the end of a patient's stay. C) Data are collected only on patients only on observations. D) Data are never collected on inpatient admissions.

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Which of the following is used to determine an athlete's ability to perform a specific activity?

A. Electric simulation B. The POLICE technique C. Functional testing D. Isometric exercises

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