The most lethal complication of a peptic ulcer is
a. bleeding.
b. perforation.
c. severe pain.
d. gastric outlet obstruction.
B
Perforation is considered the most lethal complication of peptic ulcer. Bleeding may occur when the ulcer erodes into a blood vessel; however, perforation occurs when the ulcer crater penetrates the entire thickness of the wall of the stomach or duodenum. Gastric outlet obstruction can occur at any time and can be relieved by NG aspiration of stomach contents.
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Complete the following ECG criteria for a sinus arrest:
Rhythm ________________________________________ Rate ________________________________________ P waves ________________________________________ PR interval ________________________________________ QRS duration ________________________________________ Fill in the blanks with correct word
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