What is a likely finding in the nurse's assessment of a patient who has a large bowel obstruction?
Projectile vomiting
Abdominal distention
Metabolic alkalosis
Referred back pain
The Correct Answer is B
Rationale:
A. Vomiting is more common in small bowel obstruction and is usually less severe in large bowel obstruction.
B. A large bowel obstruction causes accumulation of gas and fecal material proximal to the blockage, leading to significant abdominal distention.
C. Large bowel obstruction may eventually cause metabolic acidosis due to impaired perfusion and tissue hypoxia, not alkalosis.
D. Back pain is not a typical sign of large bowel obstruction; the primary symptom is abdominal discomfort, distention, and constipation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","E"]
Explanation
Rationale:
A. The client should not infuse dextrose solution independently if TPN runs out; this could cause serious metabolic complications.
B. TPN should not be stopped abruptly once weight gain is achieved; discontinuation should be gradual to prevent hypoglycemia.
C. Maintaining the prescribed infusion rate is important to ensure proper nutrient delivery and prevent metabolic complications.
D. TPN should never be shaken if a precipitate is present; this can cause embolism or catheter occlusion.
E. TPN should be refrigerated when not in use to prevent bacterial contamination and preserve solution stability.
Correct Answer is A
Explanation
Rationale:
A. Lansoprazole is a proton pump inhibitor (PPI) that works best when given before meals, ideally 30–60 minutes prior to the first meal of the day, to maximize inhibition of gastric acid secretion.
B. Taking lansoprazole at night does not optimize its effect because acid production is highest in the morning.
C. Administering with food reduces absorption and efficacy of the medication.
D. PPIs should be taken before the meal, not after, to ensure maximum acid suppression.
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