Which nursing intervention is necessary before a second-trimester transabdominal ultrasound?
a. Place the woman NPO for 12 hours.
b. Instruct the woman to drink 1 to 2 quarts of water.
c. Administer an enema.
d. Perform an abdominal preparation.
ANS: B
When the uterus is still in the pelvis, visualization may be difficult. It is necessary to perform the test when the woman has a full bladder, which provides a "window" through which the uterus and its contents can be viewed. The woman needs a full bladder to elevate the uterus; therefore being NPO is not appropriate. Neither an enema nor an abdominal preparation is necessary for this procedure.
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