Place the five phases of a myocardial action potential in correct order. 1. Fast sodium channels are inactivated 2. Cell returns to its "resting" state 3. "Plateau" phase 4. Initial rapid depolarization of myocardial tissues 5. Calcium channels close
a. 1, 3, 2, 5, 4
b. 4, 1, 3, 5, 2
c. 1, 2, 3, 4, 5
d. 4, 1, 2, 5, 3
ANS: B
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a. After 10 hr of fasting b. While walking on a treadmill c. On rising in the morning d. 1 hr after lunch
____ Secondary condition that arises during hospitalization and is thought to increase the length of stay by at least 1 day in approximately 75% of patients
Fill in the blank with correct word.
The rapid trauma exam focuses on finding injuries that may cause shock by quickly assessing which of the following body areas? 1. Head 2. Neck 3. Chest 4. Abdomen 5. Pelvis 6. Proximal extremities 7. Distal extremities
A) 1, 2, 3, 4, and 5
B) 1, 4, 5, and 6
C) 1, 2, 3, 4, 5, 6, and 7
D) 3, 4, 5, and 6
Describe the common varieties of rats used for research and as pets