Myoglobin is a good cardiac marker because it:
A. Diffuses into the blood more quickly than CK-MB.
B. Diffuses into the blood more slowly than CK-MB.
C. Doesn't diffuse into the blood at all when cardiac tissue dies.
D. Is an extremely large protein and therefore does not diffuse into the blood very easily.
A
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You are caring for a patient with chronic bronchitis. The patient has an SpO2 of 90%. You should:
A) administer supplemental oxygen at high flow 15 lpm via NRB. B) administer supplemental oxygen at high flow, via CPAP. C) administer supplemental oxygen at low flow, via nasal cannula. D) do nothing, as this is an expected reading.
If the PCO2 of an arterial blood sample is 60 mm Hg, the expected pH is:
a. 7.20. c. 7.50. b. 7.30. d. 7.60.
The walled membrane separating the ventricles is the _______________ septum.
Fill in the blank(s) with the appropriate word(s).
For sedentary people, any type of physical activity is seriously impaired by age _____, and productive life ends before age_______.
a. 40; 60 b. 50; 65 c. 60; 70 d. 65; 75