Blood pressure depends on the interrelationships of which of the following? (Select all that apply.)
a. Cardiac output
b. Peripheral vascular resistance
c. Blood volume
d. Blood viscosity
e. Pulse pressure
A, B, C, D
Blood pressure depends on the interrelationships of cardiac output, peripheral vascular resistance, blood volume, blood viscosity, and artery elasticity. The difference between systolic and diastol-ic pressure is the pulse pressure. For a BP of 120/80 mm Hg, the pulse pressure is 40.
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An occupational health nurse is called to the floor of a factory where a worker has sustained a flash burn to the right arm. The nurse arrives and the flames have been extinguished. The next step is to "cool the burn." How should the nurse cool the burn?
A) Apply ice to the site of the burn for 5 to 10 minutes. B) Wrap the patient's affected extremity in ice until help arrives. C) Apply an oil-based substance or butter to the burned area until help arrives. D) Wrap cool towels around the affected extremity intermittently.
The nurse is assessing for the presence of Trousseau sign. Which findings would the nurse evaluate as indicating this sign is present?
1. The fingers hyperflex. 2. The thumb flexes toward the palm. 3. The fingers hyperextend. 4. The thumb hyperextends. 5. The hand makes a fist.
Compared to that of an adult, which of the following percentages represents a child's oxygen consumption?
a. 25% c. 100% b. 50% d. 200%
A drug manufacturer that is performing the effects of a drug on laboratory animals would be in which phase of the new drug development timeline?
1. Clinical Investigation 2. Preclinical Investigation 3. New Drug Application Review 4. Postmarketing Studies