The atrioventricular (AV) junction consists of the _____
a. SA and AV nodes
b. AV node and the Purkinje fibers
c. AV node and nonbranching portion of the bundle of His
d. AV node, bundle of His, and the right and left bundle branches
C
The AV node and the nonbranching portion of the bundle of His are called the AV junction. The bundle of His has pacemaker cells that are capable of discharging at a rhythmic rate of 40 to 60 beats/min.
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Which stage in the infectious process can be characterized by the onset of nonspecific symptoms until specific symptoms begin to manifest?
a. incubation c. illness b. prodromal d. convalescence
The postanesthesia care nurse is caring for a client who had gastric banding surgery and was extubated an hour ago. The client's blood gases are as follows: pH, 7.22; HCO3– 21 mEq/L; PCO2, 65 mm Hg; and PO2, 58 mm Hg
Which is the priority action by the nurse? a. Assess the client's airway. b. Increase the client's oxygen flow rate. c. Check the client's oxygen saturation level. d. Document findings in the client's chart.
Aldactone family medications are frequently used when the hypertensive patient also has:
1. Hyperkalemia 2. Advancing liver dysfunction 3. The need for birth control 4. Rheumatoid arthritis
Neonates are classified according to their birth weight. A neonate whose birth weight is 1500 grams (3.3 pounds) would be classified as:
a. Low birth weight (LBW) b. Very low birth weight (VLBW) c. Extremely low birth weight (ELBW) d. Intrauterine growth restricted (IUGR)