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The nurse is caring for a patient with protein calorie malnutrition who has had abdominal surgery and is receiving parenteral nutrition (PN). Which of the following findings is the best indicator that the patient is receiving adequate nutrition?
- A. Blood glucose is 6.1 mmol/L.
- B. Serum albumin level is 35 g/L.
- C. Fluid intake and output are balanced.
- D. Surgical incision is healing normally.
Correct Answer: D
Rationale: Because poor wound healing is a possible complication of malnutrition for this patient, normal healing of the incision is an indicator of the effectiveness of the PN in providing adequate nutrition. Blood glucose is monitored to prevent the complications of hyperglycemia and hypoglycemia, but it does not indicate that the patient's nutrition is adequate. The intake and output will be monitored but do not indicate that the PN is effective. The albumin level is in the low-normal range but does not reflect adequate caloric intake, which is also important for the patient.
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Which of the following actions should the nurse implement when using a soft, silicone nasogastric tube for enteral feedings?
- A. Avoid giving medications through the feeding tube.
- B. Flush the tubing after checking for residual volumes.
- C. Administer continuous feedings using an infusion pump.
- D. Replace the tube every 3-5 days to avoid mucosal damage.
Correct Answer: B
Rationale: The soft silicone feeding tubes are small in diameter and can easily become clogged unless they are flushed after the nurse checks the residual volume. Either intermittent or continuous feedings can be given. The tubes are less likely to cause mucosal damage than the stiffer polyvinyl chloride tubes used for nasogastric suction and do not need to be replaced at certain intervals. Medications can be given through these tubes, but flushing after medication administration is important to avoid clogging.
The nurse has just started a patient on continuous tube feedings of a full-strength commercial formula at 100 mL/hour using a closed system method and has had six diarrhea stools the first day. Which of the following actions should the nurse plan to take?
- A. Slow the infusion rate of the tube feeding.
- B. Check gastric residual volumes more frequently.
- C. Change the enteral feeding system and formula every 8 hours.
- D. Discontinue administration of water through the feeding tube.
Correct Answer: A
Rationale: Loose stools indicate poor absorption of nutrients and indicate a need to slow the feeding rate or decrease the concentration of the feeding. Water should be given when patients receive enteral feedings to prevent dehydration. When a closed enteral feeding system is used, the tubing and formula are changed every 24 hours. High residual volumes do not contribute to diarrhea.
After 6 hours of parenteral nutrition (PN) infusion, the nurse checks a patient's capillary blood glucose level and finds it to be 6.7 mmol/L. Which of the following actions should the nurse take?
- A. Obtain a venous blood glucose specimen.
- B. Slow the infusion rate of the PN infusion.
- C. Recheck the capillary blood glucose in 4 hours.
- D. Notify the health care provider of the glucose level.
Correct Answer: C
Rationale: Mild hyperglycemia is expected during the first few days after PN is started and requires ongoing monitoring. Because the glucose elevation is small and expected, notification of the health care provider is not necessary. There is no need to obtain a venous specimen for comparison. Slowing the rate of the infusion is beyond the nurse's scope of practice and will decrease the patient's nutritional intake.
The nurse is caring for a patient who is to have a bolus tube feeding. Which of the following actions should the nurse implement?
- A. Deliver the feeding via a syringe over 15 minutes.
- B. Increase the rate of the tube feeding to deliver the bolus over 5 minutes.
- C. Withhold water by mouth for 30 minutes prior to the bolus feeding.
- D. Question the order as tube feedings are not to be delivered as a bolus.
Correct Answer: A
Rationale: Bolus feedings are typically delivered by gravity via a syringe over approximately 15 minutes when the feeding tube is placed in the stomach. The tube feeding rate would not be increased as the bolus should be delivered by gravity via a syringe. It's important to remember that the patient still needs water (1 mL/cal formula received), and this may be administered at any time that the patient can tolerate it.
Which of the following actions should the nurse take first in order to improve calorie and protein intake for a patient who eats only about 50% of each meal because of 'feeling too tired to eat much'?
- A. Teach the patient about the importance of good nutrition
- B. Serve multiple small feedings of high-calorie, high-protein foods.
- C. Obtain an order for enteral feedings of liquid nutritional supplements.
- D. Consult with the health care provider about providing parenteral nutrition (PN).
Correct Answer: B
Rationale: Eating small amounts of food frequently throughout the day is less fatiguing and will improve the patient's ability to take in more nutrients. Teaching the patient may be appropriate, but will not address the patient's inability to eat more because of fatigue. Tube feedings or PN may be needed if the patient is unable to take in enough nutrients orally, but increasing the oral intake should be attempted first.