A patient's white blood cells (WBCs) are counted on an automated cell counter 10 times. The mean white count is 8000/mL, and the standard deviation (SD) is 300. What is the coefficient of variation (CV)?

To prevent poor blood circulation it is advisable to take short one- to two-minute stretch breaks every ________

a. two to three minutes b. 12–13 minutes c. 20–30 minutes d. two to three hours

Place the following phases of Investigational New Drug (IND) approval in the correct order

1. The drug is investigated as a treatment for a small number of individuals with the disease the drug is intended to treat. 2. The drug is investigated in large, multicenter studies to establish efficacy and safety. 3. The drug is investigated in small groups of healthy volunteers to establish its activity. a. 1, 2, 3 b. 2, 3, 1 c. 1, 3, 2 d. 3, 1, 2