Kaplan Foundation B Practice Test 2026 - Free Kaplan Practice Questions and Study Guide

Parenteral nutrition is delivered through a central venous catheter because the solutions are highly concentrated and hyperosmolar, which can irritate peripheral veins and require reliable, long‑term access. This route supports rapid infusion and reduces vein injury, enabling total nutrient delivery when the GI tract cannot be used.

The most important monitoring targets are blood glucose and electrolytes. PN contains a large amount of dextrose, so glucose levels must be watched closely for hyperglycemia or hypoglycemia, especially during initiation or rate changes. Electrolyte levels—such as potassium, sodium, calcium, magnesium, and phosphate—can shift with the PN solution and metabolic changes, so regular labs guide adjustments to prevent imbalances. While other aspects like liver function or blood pressure may be monitored in broader care, the key monitoring for parenteral nutrition focuses on glucose control and electrolyte balance.