Angina pectoris is chest pain caused by reduced
A. action potentials from SA node.
B. blood supply to cardiac muscle.
C. fluid in the pericardial sac.
D. contractility of the heart.
E. stimulation of the myocardium.
Answer: B
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A) start an IV of normal saline in case the patient deteriorates. B) apply a cardiac monitor and obtain a full set of vital signs. C) perform a detailed secondary assessment to detect other injuries. D) reassess pulse, motor, and sensory functions in all extremities.
Which muscle contracts when one smiles?
A. Frontalis B. Zygomaticus major C. Depressor anguli oris D. Orbicularis oris E. Buccinator
The symptoms of constipation are due to
a. inhibition of gastric emptying b. absorption of toxins of bacterial origin from the colon c. prolonged distention of the large intestine by the fecal mass d. exhaustion due to frequent straining movements during the defecation reflex e. accumulation of large amounts of fluid in the colon
The average pH for normal urine is about __________.
5.0 6.0 7.0 8.0