A nurse working in the emergency department is admitting a client who has pertussis. Which of the following actions should the nurse take?

Choice A reason: While requiring assistance with getting dressed is an important consideration in care planning, it is not the most immediate priority. The nurse should ensure that the client's basic needs are met, but this does not represent an acute medical concern.

Choice B reason: The client reporting numbness of the fingers of the left hand is the most urgent priority. Numbness can indicate neurovascular compromise or increased pressure within the cast, which could lead to further injury or complications such as compartment syndrome. Immediate assessment and intervention are required to prevent permanent damage.

Choice C reason: Itching of the left arm under the cast is a common complaint and can be uncomfortable for the client. However, it is not a priority over potential neurovascular compromise. The nurse can provide education on how to safely alleviate itching without compromising the integrity of the cast.

Choice D reason: Having a pillow under the left arm is part of proper positioning to reduce swelling and provide comfort. While it is a part of good nursing care, it is not a priority over signs of neurovascular compromise.

Choice A reason: Epinephrine is primarily used in emergency situations for its vasoconstrictive and bronchodilatory effects, particularly in cases of anaphylaxis or cardiac arrest. It is not typically used to manage symptoms associated with brainstem contusions or to regulate urinary output.

Choice B reason: Furosemide is a loop diuretic commonly prescribed to reduce fluid retention in conditions such as heart failure or renal disease. Given that the client has already produced a large volume of urine (4,000 mL in 24 hours, which is above the normal range of 800 to 2,000 milliliters per day), administering furosemide would not be appropriate as it would likely exacerbate the excessive urinary output.

Choice C reason: Nitroprusside is a potent vasodilator used to treat acute hypertensive crises. It has no role in the management of thirst or regulation of urinary output and is not indicated for the treatment of brainstem contusions.

Choice D reason: Desmopressin is a synthetic analogue of the naturally occurring antidiuretic hormone vasopressin. It is used to treat conditions characterized by excessive urination, such as diabetes insipidus, and to manage polyuria and polydipsia (excessive thirst) following head trauma or surgery in the pituitary region. In the context of a brainstem contusion with a reported high urinary output, desmopressin would be the appropriate medication to prescribe to reduce urine volume and address the client's thirst.