The nurse is performing tracheostomy care for a client when a code blue is called for another client on the unit who experiences a cardiopulmonary arrest. Which action should the nurse take?

A) Incorrect- This test is used to assess for infection or inflammation and is not specifically related to monitoring diabetes insipidus.
B) Incorrect- This test is used to monitor blood sugar levels in individuals with diabetes mellitus, not diabetes insipidus.
C) Incorrect- While urine specific gravity can provide information about urine concentration, it is not the most important laboratory test to monitor in a client with diabetes insipidus. Serum sodium level is a more critical indicator of electrolyte balance and potential complications in DI.
D) Correct- Diabetes insipidus (DI) is a condition characterized by excessive thirst and urination due to the body's inability to regulate fluid balance. In DI, the body either lacks antidiuretic hormone (ADH), which regulates water reabsorption in the kidneys, or the kidneys are resistant to its effects. As a result, clients with DI can produce large volumes of dilute urine. The most significant concern in DI is the potential for electrolyte imbalances, particularly low serum sodium levels (hyponatremia). Excessive loss of water in the urine can lead to dehydration and concentration of the blood's sodium levels. This can result in neurological symptoms, such as confusion, seizures, and even coma. Monitoring the serum sodium level is crucial to ensure that it remains within a safe range.

The correct answer is Choice B.

Choice A rationale: Ice application induces vasoconstriction, which reduces swelling but does not evert inverted nipples. This action does not address the primary issue of nipple inversion preventing adequate latch.

Choice B rationale: Breast pump use creates negative pressure, drawing out the nipple. This eversion facilitates latching by providing a more prominent nipple for the infant's oral cavity to grasp effectively.

Choice C rationale: Supplemental formula feedings provide nutrition, but do not resolve the latching difficulty caused by inverted nipples. This can interfere with the establishment of the mother's milk supply.

Choice D rationale: Breast shields can aid latching, but they are most effective when used in conjunction with nipple eversion techniques. They do not directly address the underlying problem of inverted nipples.