Correct Answer: D

Rationale: Dark, tarry stools indicate the presence of digested blood in the gastrointestinal tract, signifying a higher gastrointestinal bleed. This finding requires immediate intervention due to the potential severity of the bleed. Bright red blood in the vomit may indicate active bleeding but is not as concerning as digested blood. Elevated blood pressure and heart rate are common responses to bleeding but do not provide direct evidence of the source or severity of the bleed. Coffee ground emesis is indicative of partially digested blood and is a concern but not as urgent as dark, tarry stools.

Correct Answer: B

Rationale: An adolescent expressing 'life without purpose' after taking duloxetine (Cymbalta) may be indicating suicidal ideation, which requires immediate attention. The initial period of antidepressant treatment can increase the risk of suicidal thoughts, especially in younger populations. Increased appetite (Choice A) is a common side effect of duloxetine and may not require immediate follow-up. Mood swings (Choice C) and insomnia (Choice D) are also possible side effects of the medication but are not as urgent as addressing suicidal ideation.

Correct Answer: C

Rationale: The most important instruction for the nurse to provide to a client scheduled for a colonoscopy and prescribed a bowel preparation is to take the entire bowel preparation as directed. Completing the entire bowel preparation as prescribed is crucial to ensure the colon is properly cleansed for the colonoscopy. Incomplete bowel prep can interfere with the visualization of the colon, leading to inaccurate results. Choices A, B, and D are important but not as crucial as ensuring the complete intake of the bowel preparation for an effective procedure.

Correct Answer: A

Rationale: The correct answer is A: 'Monitor for a persistent cough.' Lisinopril, an ACE inhibitor, is associated with a common side effect of a persistent dry cough. This cough can be bothersome to the client and should be reported to their healthcare provider. Choices B, C, and D are incorrect because bradycardia, dizziness, swelling, difficulty breathing, headache, and blurred vision are not typically associated with lisinopril use.

Correct Answer: D

Rationale: After intravenous pyelography, it is crucial for the client to measure urine output in the next day to monitor for any potential complications, such as kidney issues. Promptly notifying the healthcare provider in case of decreased urine output is essential for timely intervention. While rest and hydration are important post-procedure, monitoring urine output takes precedence due to its direct correlation with potential complications.