Corrections

In the Certification Test Prep department in the December issue (Critical Care Nurse. 2025:67-71), the correct answer for question 5 under PCCN Review Questions should be D, not C. The Rationale for this question should read as follows:Syndrome of inappropriate antidiuretic hormone secretion is characterized by the overproduction of antidiuretic hormone. This syndrome causes decreased urine output, resulting in minimal, concentrated urine output and hyponatremia (D). Serum sodium level is a good measure of blood concentration; hypernatremia may indicate hypovolemia, and hyponatremia indicates hypervolemia. Copious dilute urine (A, B) is a symptom of diabetes insipidus, a decrease in antidiuretic hormone function caused by either underproduction by the pituitary gland or nonresponse to the hormone by the kidneys. Concentrated urine would lead to diluted blood and low sodium concentration (hyponatremia) as opposed to high sodium concentration (hypernatremia) (C).