A student is learning how to administer intravenous fluids, including accessing a vein. Although all of the following may occur, which is the most potentially harmful risk posed for the patient when accessing the vein?

Correct Answer: D

Rationale: Infection is the most serious risk, potentially leading to systemic complications.

Correct Answer: C

Rationale: Normal Saline has 154 mmol/L Na+, not 150. Hartmann's has 111 mmol/L Cl-, not 131. The correct incorrect statement is C.

Correct Answer: B

Rationale: Chlorvescent tablets typically provide more potassium per dose than the other options listed.

Correct Answer: C

Rationale: Breast cancer is not typically associated with SIADH; the others are well-known causes.

Correct Answer: D

Rationale: Hyperventilation causes tetany by decreasing ionized calcium due to alkalosis, not total body calcium.