Which is true about a sample that is heterogeneous?
a. It has a wide variation in scores.
b. Scores will be clustered around the mean.
c. The measure of range will be small.
d. The standard deviation cannot be calculated.
ANS: A
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A) Increased serum sodium B) Decreased serum potassium C) Decreased hemoglobin D) Increased platelets
Research has been conducted to determine how various food types affect the body and various conditions. Which of the following food groups has been noted to lower triglyceride levels in human trials?
A) Fish oil B) Whole grains C) Nuts D) Vegetable oils
When discussing the effects of the nature of risks, which of the following would be accepted more easily?
1. Newly built power plant 2. Smoking cigarettes 3. Speeding vehicles near playground 4. Industrial pollution
It is important for the nurse giving a vaccine to know whether the patient has an allergy to eggs and feathers for which of the following reasons?
A. many biologic agents come from chick embryos B. viruses are found in all eggs C. chicken egg cells are close to human cells D. there is clotted blood in egg cells