ATI LPN
LPN Fundamentals Practice Questions
1. A client is receiving continuous enteral feedings through a nasogastric tube. Which of the following actions should the nurse take?
- A. Elevate the head of the bed to 30°
- B. Flush the tube with 50 mL of water every 2 hours
- C. Replace the feeding bag and tubing every 72 hours
- D. Check the client's gastric residual every 8 hours
Correct answer: A
Rationale: Elevating the head of the bed to 30° is the correct action to take when a client is receiving continuous enteral feedings through a nasogastric tube. This position helps prevent aspiration of the enteral feedings into the lungs, reducing the risk of aspiration pneumonia. Additionally, elevating the head of the bed promotes proper digestion and absorption of the feedings by utilizing gravity to facilitate movement into the stomach and through the gastrointestinal tract. Flushing the tube with water every 2 hours (Choice B) is not necessary for continuous feedings and may disrupt the feeding schedule. Replacing the feeding bag and tubing every 72 hours (Choice C) is not the standard recommendation unless there are specific concerns or complications. Checking the client's gastric residual every 8 hours (Choice D) is important but not the immediate action needed to prevent aspiration during enteral feedings.
2. Pepsinogen secreted by the gastric cells is converted into pepsin by:
- A. enterokinase
- B. hydrochloric acid
- C. gastric lipase
- D. pancreatic lipase
Correct answer: B
Rationale: Pepsinogen is converted into its active form, pepsin, by hydrochloric acid in the stomach. Hydrochloric acid helps in unfolding the pepsinogen molecule to transform it into pepsin, which is crucial for protein digestion. Therefore, the correct answer is hydrochloric acid (choice B). Enterokinase (choice A) is an enzyme produced in the small intestine that activates trypsinogen into trypsin, not pepsinogen. Gastric lipase (choice C) is an enzyme that digests fats, not involved in converting pepsinogen to pepsin. Pancreatic lipase (choice D) is an enzyme produced by the pancreas that aids in breaking down fats in the small intestine, not part of the process of pepsin activation.
3. A client with hepatic encephalopathy exhibits confusion, difficulty arousing from sleep, and rigid extremities. Based on these clinical findings, what stage of hepatic encephalopathy should the nurse document?
- A. Stage 1
- B. Stage 2
- C. Stage 3
- D. Stage 4
Correct answer: C
Rationale: Stage 3 hepatic encephalopathy is characterized by confusion, difficulty arousing from sleep, and rigidity of extremities. These symptoms indicate advanced manifestations of hepatic encephalopathy, requiring prompt intervention and monitoring to prevent further neurological deterioration.
4. When assessing a newborn with respiratory distress syndrome who received synthetic surfactant, which parameter should the nurse monitor to evaluate the newborn's condition?
- A. Oxygen saturation
- B. Body temperature
- C. Serum bilirubin
- D. Heart rate
Correct answer: A
Rationale: In a newborn with respiratory distress syndrome who has received synthetic surfactant, monitoring oxygen saturation is crucial to evaluate the effectiveness of the treatment. Oxygen saturation levels provide valuable information about the newborn's respiratory status and the adequacy of gas exchange. Changes in oxygen saturation can indicate improvements or deterioration in the newborn's condition following the administration of synthetic surfactant. Monitoring oxygen saturation helps the nurse assess the newborn's response to treatment and make timely interventions if needed. Body temperature, serum bilirubin, and heart rate are important parameters to monitor in newborns for other conditions but are not specific indicators of the effectiveness of synthetic surfactant in treating respiratory distress syndrome.
5. Following a CVA, the nurse assesses that a client has developed dysphagia, hypoactive bowel sounds, and a firm, distended abdomen. Which prescription for the client should the nurse question?
- A. Continuous tube feeding at 65 ml/hr via gastrostomy.
- B. Total parenteral nutrition to be infused at 125 ml/hour.
- C. Nasogastric tube connected to low intermittent suction.
- D. Metoclopramide (Reglan) intermittent piggyback.
Correct answer: A
Rationale: In a client with dysphagia and gastrointestinal symptoms such as hypoactive bowel sounds and a firm, distended abdomen, continuous tube feeding might exacerbate the symptoms. This can lead to complications and should be questioned by the nurse.
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