A new mother on the postpartum unit runs out of the room screaming that her newborn infant's crib is empty and the baby is missing.

Which action should the nurse take first?

Choice A rationale:

Sinus tachycardia may occur in response to various stressors or physiological conditions but is not directly related to anorexia nervosa or severe malnutrition. It is not the primary pathological process resulting from this condition.

Choice B rationale:

Menstrual cramps are not a pathological process but rather a symptom that may result from hormonal changes or other factors. While amenorrhea (absence of menstrual periods) is a common feature of anorexia nervosa, menstrual cramps are not a primary concern in this context.

Choice C rationale:

Hypertension is not typically associated with anorexia nervosa or severe malnutrition. In fact, individuals with anorexia nervosa often experience hypotension (low blood pressure) due to dehydration and nutritional deficiencies.

Choice D rationale:

Amenorrhea is the primary pathological process resulting from the adolescent's consistent maladaptive behavior of anorexia nervosa. Severe malnutrition and low body weight can disrupt the normal menstrual cycle and lead to amenorrhea. This is a significant concern for individuals with anorexia nervosa and can have long-term health implications.

Choice A rationale:

Hyperglycemia is a key symptom of DKA. It occurs when there is an insufficient amount of insulin in the body to allow glucose to enter cells for use as energy. As a result, the body begins to break down fat for fuel, leading to the production of ketones and causing blood glucose levels to rise1. Normal blood glucose levels are between 4.0 to 6.0 mmol/L when fasting and up to 7.8 mmol/L two hours after eating2.

Choice B rationale:

Ketonuria, or the presence of ketones in the urine, is another symptom of DKA. When the body breaks down fat for energy, ketones are produced. If too many ketones build up in the blood, they can spill over into the urine1.

Choice C rationale:

Metabolic acidosis occurs in DKA due to the accumulation of ketones in the blood. Ketones are acidic, and when they build up in the blood, they cause the blood to become more acidic, leading to metabolic acidosis1.

Choice D rationale:

Hypokalemia is not a symptom of DKA. In fact, patients with DKA often have high potassium levels in their blood at presentation because acidosis causes potassium to move from inside the cells into the bloodstream1. However, during treatment for DKA, when insulin is administered and acidosis is corrected, potassium moves back into the cells and can lead to low potassium levels or hypokalemia1.

Choice E rationale:

Dehydration is a common symptom of DKA. High blood glucose levels lead to increased urination as the body tries to get rid of the excess glucose. This can result in dehydration1.

Choice F rationale:

Kussmaul respirations are a type of hyperventilation that occurs in DKA as the body tries to get rid of excess acids (ketones) through the lungs by breathing rapidly and deeply1.