Which of the following situations will cause an increase in the single-breath carbon dioxide (SBCO2) curve?
a. Decreased metabolic rate and decreased ventilation
b. Decreased metabolic rate and increased ventilation
c. Increased metabolic rate and increased ventilation
d. Increased metabolic rate and decreased ventilation
ANS: D
The same cause for an increase in arterial partial pressure of carbon dioxide (PaCO2) will increase the single-breath carbon dioxide (SBCO2) curve. An increase in metabolic rate will increase the carbon dioxide (CO2) production in the body. This, accompanied by either no change in ventila-tion or a decrease in ventilation, will cause the amount of CO2 in the body to increase and thus cause the amount of CO2 exhaled to increase. The only combination that will do this is "D," in-creased metabolic rate and decreased ventilation.
You might also like to view...
When do physicians allow pregnant women to take some medications?
a. If the women does not want to stop using the medication b. If the medication is sold over-the-counter c. If failure to take the prescribed treatment would hinder the health of the mother d. If the woman has been taking the medication for more than a year
All sharps should be passed with ____________________. If hospital policy or an individual surgeon has not implemented this technique, the scrub must pass sharps in the traditional manner
A. the technique requested on surgeon's preference card B. care C. the left hand D. a neutral zone (no-hands) technique
Spasms of the blood vessels are known as:
A. hypotension B. arteriospasms C. venospasms D. vasospasms
A company installs firewalls and virus scanning to address which security measure?
A. permission B. authentication C. encryption D. preventing damage