A nurse is assisting with the care of a postoperative client who has developed malignant hyperthermia. Which of the following actions should the nurse take?

Choice A Reason:

Administer meperidine IM is incorrect. Reason why it's not the answer: Meperidine (Demerol) is not recommended in cases of malignant hyperthermia. It can potentially exacerbate the situation by further increasing muscle rigidity and potentially contributing to the hypermetabolic state. Meperidine can trigger additional release of calcium from the sarcoplasmic reticulum in muscles, worsening the symptoms.

Choice B Reason:

Instill a warm enema solution is incorrect. Reason why it's not the answer: Introducing warm solutions can exacerbate the client's condition by further increasing body temperature. Malignant hyperthermia is characterized by a dangerous increase in body temperature, and adding heat through an enema would only make the situation worse.

Choice C Reason:

Applying a cooling blanket is recommendable. Reason why it's the answer: A cooling blanket is a recommended intervention for managing malignant hyperthermia. Lowering the body temperature is crucial in preventing further complications associated with the high fever. Cooling blankets help dissipate heat from the body, aiding in rapidly reducing the dangerously elevated temperature associated with malignant hyperthermia.

Choice D Reason:

Ventilate client with 50% oxygen is incorrect. Reason why it's not the answer: While providing oxygen support might be necessary as part of managing the overall condition, ventilating with 50% oxygen specifically may not directly address the core issue of rapidly cooling the body during a malignant hyperthermia crisis. Ventilation may be required, but the immediate concern is to cool the body to prevent complications arising from the elevated body temperature.

Choice A Reason:
Absence of Chvostek's sign is a wrong indication. Chvostek's sign is a twitching of facial muscles in response to tapping the facial nerve and is typically associated with low blood calcium levels (hypocalcemia). It's not directly related to hyperglycemia or high blood sugar levels. Hyperglycemia refers to high blood sugar levels, commonly associated with diabetes mellitus.
Choice B Reason:
Presence of Kussmaul respirations is a right indication. Kussmaul respirations are deep, rapid, and labored breathing patterns often seen in individuals with diabetic ketoacidosis (DKA), a severe complication of diabetes characterized by significantly high blood sugar levels and the presence of ketones in the blood and urine. This type of breathing pattern is the body's attempt to compensate for the acidic state caused by high blood sugar and the buildup of ketones.
Choice C Reason:
Presence of diaphoresis is a wrong indication. Diaphoresis refers to excessive sweating, which can occur due to various reasons such as physical activity, heat, stress, or certain medical conditions. While hyperglycemia can cause symptoms like increased thirst and frequent urination, diaphoresis alone is not a specific indicator of high blood sugar levels.
Choice D Reason:
Absence of urinary ketones is a wrong indication. The presence of urinary ketones indicates the body is breaking down fat for energy, which commonly occurs during periods of insufficient insulin (such as in hyperglycemia or diabetic ketoacidosis). However, the absence of urinary ketones doesn't necessarily rule out hyperglycemia. It's possible for hyperglycemia to be present without ketones in the urine, especially in the early stages or when the body is still managing blood sugar levels without significant ketone production.