According to the CHD risk analysis, what appears to be the best predictor for developing coronary heart disease?
a. body mass index
b. hypertension
c. family history of CHD
d. unhealthy diet
e. physical inactivity
Ans: d. unhealthy diet
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What is meant by the action potential threshold? Choose the correct option
A) Critical level of depolarization required to trigger an action potential B) Critical level of hyperpolarization required to trigger an action potential C) The action potential threshold is the same as the generator potential D) Critical level at which electrical current is injected through a microelectrode
The nurse is attempting to flush an IV catheter without success. The site has no redness, swelling, or pain. The nurse determines the difficulty is most likely due to which of the following?
A. Air emboli B. Infiltration C. Phlebitis D. Thrombus
A pneumonectomy is a surgery to treat patients with asthma
Indicate whether the statement is true or false
By the end of the second trimester, babies typically weigh:
A. 1-2 ounces B. 5-6 pounds C. 2-2½ pounds D. 7-8 pounds