Which part of the conduction system has the slowest conduction speed, and is thus responsible for slowing down impulses until the heart is ready to receive them?
A) SA node
B) Atria
C) AV node
D) Ventricles
Answer: C
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The progression to full-blown Acquired Immune Deficiency Syndrome (AIDS) is diagnosed when a T lymphocyte count is below ________.
A. 500 B. 400 C. 300 D. 200
A physician issues a medical prescription for a patient. The correct term for this practice is:
A. dispense B. administer C. prescribe D. register E. write
Which rate is a ratio of the total number of deaths to the total number of discharges?
A) Net death rate B) Gross death rate C) Hospital death rate D) Mortality rate
A nurse is planning care for a child with iron deficiency anemia. Characteristics of iron deficien-cy anemia include which of the following? (select all that apply)
a. It is most common between the ages of 6 months and 2 years. b. It is related to gender and race. c. It may be related to socioeconomic fac-tors. d. It is rare among teenagers. e. It is difficult to diagnose in early stages.