Explanation/Reference:
Explanation:
(A) Diarrhea is a complication of tube feedings that can lead to dehydration. Diarrhea may be the result of hypertonic formulas that can draw fluid into the bowel. Other causes of diarrhea may be bacterial contamination, fecal impaction, medications, and low albumin. (B) A consistent weight gain of more than
0.22 kg/day (1⁄2 lb/day) over several days should be reported promptly. The client should be evaluated for fluid volume excess. (C) Elevating the client's head prevents reflux and thus formula from entering the airway. (D) Bacteria proliferate rapidly in enteral formulas and can cause gastroenteritis and even sepsis.

Explanation
(A) Diminished (not accentuated) patellar tendon reflex is a sign of developing MgSO4 toxicity. A value of 21 is considered a normal tendon reflex; 3+ is considered brisker than normal. (B) MgSO4 is a central nervous system (CNS) depressant. It also relaxes smooth muscle. If the respiratory rate is <16 bpm magnesium toxicity may be developing. (C) Urine output of 40mL/hr is enough to allow elimination of toxic levels of magnesium.
Urinary output of <100 mL in a 4-hour period may result in toxic levels of magnesium. (D) Presence of protein in the urine is a symptom of pregnancy-induced hypertension (PIH), a clinical syndrome for which magnesium sulfate is frequently used in medical management. Protein in the urine is not induced by magnesium sulfate intake.

Explanation
(A) The absence of wound infection is related to his surgical wound and not to postoperative GI functioning and return of peristalsis. (B) Routine postoperative protocol involves detection of bowel sounds and return of peristalsis before introduction of clear liquids, followed by progression of full liquids and a regular diet versus a full regular meal first. (C) Routine postoperative protocol for bowel obstruction is to assess for the return of bowel sounds within 72 hours after major surgery, because that is when bowel sounds normally return. If unable to detect bowel sounds, the surgeon should be notified immediately and have the client remain NPO.
(D) Routine postoperative protocol for bowel obstruction and other major surgeries involves frequent monitoring of vital signs in the immediate postoperative period (in recovery room) and then every 4 hours, or more frequently if the client is unstable, on the nursing unit. This includes assessing for signs of hypovolemic shock. Vital signs usually stabilize within the first 24 hours postoperatively.

Explanation
(A) At 10 weeks, the fundus is located slightly above the symphysis pubis. (B) At 16 weeks, the fundus is halfway between the symphysis pubis and the umbilicus. (C) At 20 weeks, the fundus is located approximately at the umbilicus. (D) At 30 weeks, the fundal height is about 30 cm, or 10 cm above the umbilicus.

(A) An IV line is not started in a nonstress test, because this test is used as an indicator of fetal well-being. This test measures fetal activity and heart rate acceleration. (B) The bladder does not have to be full prior to this test. It is not a sonogram test where a full bladder enables other structures to be scanned. (C) It has been proved that eating or drinking liquids prior to the test can assist in increasing fetal activity. (D) Any maternal activity will interfere with the results of the test.