A nurse is planning care for a client who is to start receiving total parenteral nutrition (TPN). Which of the following interventions should the nurse include in the plan of care?
Change the TPN tubing every 48 hr
Allow 18 hr for the lipids to infuse when not mixed with the TPN solution.
Use a 1.2 micron filter when infusing TPN with fat emulsions added.
Change the TPN solution after 36 hr.
The Correct Answer is C
Rationale:
A. The tubing for TPN must be changed every 24 hr (not 48 hr) to reduce the risk of central line–associated bloodstream infection (CLABSI).
B. Lipid emulsions should not hang for more than 12 hr to prevent bacterial growth and infection.
C. A 1.2-micron filter is required for TPN that contains lipids to remove particulate matter, bacteria, and fungi, since lipid solutions cannot pass through smaller filters.
D. TPN solutions should be changed every 24 hr (not 36 hr) to reduce infection risk.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Rationale:
A. Ulcerative colitis always begins in the rectum and progresses proximally, but Crohn’s disease can occur anywhere in the GI tract.
B. Ulcerative colitis and Crohn’s disease are both types of inflammatory bowel disease (IBD) characterized by chronic intestinal inflammation.
C. Surgery may be needed in severe cases, but ulcerative colitis can sometimes be cured with colectomy, while Crohn’s disease is not cured by surgery and tends to recur.
D. Fistulas are common in Crohn’s disease but not in ulcerative colitis.
Correct Answer is B
Explanation
Rationale:
A. Epigastrium refers to the upper central region of the abdomen, just below the sternum; Cullen’s sign does not appear here.
B. Umbilical region (around the navel) is where Cullen’s sign appears as a bluish discoloration due to subcutaneous fat necrosis or retroperitoneal bleeding associated with acute pancreatitis. This is the correct site.
C. Flank discoloration is known as Grey Turner’s sign, another indicator of retroperitoneal bleeding, but distinct from Cullen’s sign.
D. Subumbilical refers to the area below the umbilicus, not the typical site for Cullen’s sign.
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