Question 1
The nurse should monitor for which condition as a complication of total parenteral nutrition (TPN)?
Correct Answer:
Polyuria
Explanation:
Total parenteral nutrition delivers a large glucose load directly into the bloodstream. When blood glucose rises, the kidneys excrete the excess glucose with water, causing osmotic diuresis and increased urine output. This makes polyuria the most relevant complication to monitor with TPN. Track urine output closely and monitor blood glucose and electrolytes, adjusting the TPN rate or adding insulin per protocol if hyperglycemia occurs. The other options are less specifically tied to TPN: aspiration risk is more a concern with enteral feeding, abdominal distention can arise from various GI issues, and stomatitis is not a hallmark complication of TPN. The key idea is the glucose load from TPN causing osmotic diuresis and polyuria.
Question 2
Which head-of-bed position is recommended during bolus feeding and for a period afterward?
Correct Answer:
Elevate HOB to 30 degrees and maintain for 30 to 60 minutes after.
Explanation:
The main idea is to prevent aspiration during and after bolus feeding by keeping the head of the bed elevated. A moderate incline of about 30 degrees provides a safe balance: it reduces reflux back toward the esophagus without making breathing or digestion uncomfortable. Keeping this position for 30 to 60 minutes after feeding is important because the stomach is still processing the bolus and gastric emptying can lead to residual contents that could reflux and be aspirated if the patient is flat. Elevating only during feeding or at a higher angle, or going flat after feeding, doesn’t adequately protect the airway during the vulnerable post‑meal period. Therefore, elevating the head of the bed to 30 degrees and maintaining that position for 30–60 minutes after feeding best minimizes aspiration risk.
Question 3
In the care of a patient receiving bolus feeding, how often should residual be checked according to standard practice?
Correct Answer:
Every 4 hours.
Explanation:
Regular monitoring of gastric residuals helps gauge how well the stomach is emptying and reduces the risk of aspiration during enteral nutrition. For bolus feeding, feeds are given at set intervals—commonly every four hours—so residuals are checked just before each bolus, effectively about every four hours. Checking more frequently (such as every two hours) isn’t usually necessary unless there are signs of intolerance, while checking less often (every six hours or only once per shift) could miss delayed gastric emptying and lead to complications. Always follow the unit’s specific protocol.
Question 4
Which endoscopic hemostasis modalities are commonly used for stigmata of recent hemorrhage?
Correct Answer:
Clipping, injection, and laser therapy.
Explanation:
Endoscopic control of recent GI bleeds relies on a versatile set of tools that are often used together. Injecting a vasoconstrictive agent helps slow and tamp down ongoing bleeding, creating a window to apply definitive measures. Clipping provides immediate mechanical closure of the bleeding vessel or ulcer crater, which can be durable in many cases. Laser therapy adds focused coagulation of the bleeding source, offering another way to achieve hemostasis when clipping isn’t feasible or as an adjunct to reinforce control. This combination—clipping, injection, and laser therapy—reflects a practical, commonly used approach to stigmata of recent hemorrhage. Stenting isn’t a standard hemostasis method for acute GI bleeding, and relying on thermal therapy alone misses the benefits of the mechanical and vasoconstrictive steps that are frequently employed.
Question 5
How often should residual be checked during bolus tube feeding?
Correct Answer:
Check residual every 4 hours.
Explanation:
Gastric residual volume helps you assess how well the stomach is emptying during enteral feeding and whether the patient is tolerating the feed without increasing aspiration risk. For bolus tube feeding, checking residual every 4 hours provides a good balance: it’s frequent enough to catch delayed gastric emptying early, but not so frequent that it unduly interrupts feeding. Checking more often (such as every 2 hours) can disrupt the feeding schedule without proven added safety, while checking less often (like every 6 hours) might miss early signs of intolerance. Of course, residual checks should not be neglected—elevated residuals can signal poor motility or rising aspiration risk, prompting reassessment or a temporary hold if thresholds are met.
Question 1
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About this Exam

Prepare with the Invasives GI Practice Exam practice quiz. This question bank includes 10 questions covering bolus, feeding, patient, tube, and nurse. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Invasives GI Practice Exam

This practice set contains 10 questions from the matching question bank and focuses on bolus, feeding, patient, tube, and nurse. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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