EXAM 4
A nurse is caring for a patient with a Salem sump gastric tube attached to low intermittent suction for decompression. The patient asks, "What's this blue part of the tube for?" Which response by the nurse would be most appropriate?
"It is a vent that prevents backflow of the secretions." Explanation: The blue part of the Salem sump tube vents the larger suction-drainage tube to the atmosphere and, when kept above the patient's waist, prevents reflux of gastric contents through it. Otherwise it acts as a siphon. A gauge on the suction device regulates the pressure of the device. The tube has markings on it to aid in measurement.
The nurse cares for a client who receives continuous enteral tube feedings and who is at low risk for aspiration. The nurse assesses the gastric residual volume to be 350 mL. The nurse determines which action is correct?
Monitoring the feeding closely. Explanation: High residual volumes (>200 mL) should alert the nurse to monitor the client more closely. Increasing the feeding rate will increase the residual volume. Lowering the head of the bed increases the client's risk for aspiration.
The primary source of microorganisms for catheter-related infections are the skin and the
catheter hub. Explanation: The primary sources of microorganisms for catheter-related infections are the skin and the catheter hub. The catheter site is covered with an occlusive gauze dressing that is usually changed every other day.
A client who can't tolerate oral feedings begins receiving intermittent enteral feedings. When monitoring for evidence of intolerance to these feedings, what must the nurse remain alert for?
diaphoresis, vomiting, and diarrhea. Explanation: The nurse must monitor for diaphoresis, vomiting, and diarrhea because these signs suggest an intolerance to the ordered enteral feeding solution. Other signs and symptoms of feeding intolerance include abdominal cramps, nausea, aspiration, and glycosuria. Electrolyte disturbances, constipation, dehydration, and hypercapnia are complications of enteral feedings, not signs of intolerance. Hyperglycemia, not hypoglycemia, is a potential complication of enteral feedings.