TSA Pharmacy Practice Test 2025 - Free Pharmacy Practice Questions and Study Guide

D5NS stands for Dextrose 5% in Normal Saline, which refers specifically to a solution that contains 5% dextrose (a form of glucose) combined with 0.9% sodium chloride (NaCl), commonly known as normal saline. This type of solution is often used in medical settings for hydration and to provide calories along with electrolyte replenishment.

The dextrose in D5NS acts as a source of carbohydrates, while the normal saline component provides necessary sodium and chloride ions. This combination is particularly useful in fluid replacement therapy, especially for patients who may require both carbohydrates and electrolytes, such as those who are unable to eat or are undergoing certain medical treatments.

Each of the other choices represents different concentrations or combinations of dextrose and saline or other solutions, which do not correspond to the D5NS abbreviation. Understanding the correct composition of D5NS is crucial for pharmacists and healthcare providers to ensure accurate administration and to meet the specific metabolic needs of patients.