A nurse in an emergency department is assessing a client who was biten on the left leg by a poisonous snake. The client has placed elastic bandages snugly above and below the bite marks and is in no apparent distress. Which of the following actions should the nurse take?

Choice A Reason: This is incorrect because droplet precautions are not sufficient to prevent the transmission of pneumonic plague. Droplet precautions are used to prevent the spread of infectious agents that are expelled through coughing, sneezing, or talking and travel only a short distance in the air. Droplet precautions include wearing a surgical mask, gown, and gloves, and placing the client in a private room or with a roommate who has the same infection.

Choice B Reason: This is incorrect because administering an antitoxin is not an intervention for pneumonic plague. An antitoxin is a substance that neutralizes the effects of a toxin produced by a microorganism. Pneumonic plague is not caused by a toxin, but by a bacterial infection.

Choice C Reason: This is correct because initiating airborne precautions is an intervention for pneumonic plague. Airborne precautions are used to prevent the spread of infectious agents that can remain suspended in the air and travel over long distances. Pneumonic plague is a severe and potentially fatal infection caused by the bacterium Yersinia pestis, which can be transmited through respiratory droplets or aerosols. Airborne precautions are used to prevent the spread of infectious agents that can remain suspended in the air and travel over long distances. Airborne precautions include wearing a respirator or N95 mask, placing the client in a negative-pressure room with an air filtration system, and limiting visitors and staff contact.

Choice D Reason: This is incorrect because destroying the linens after use is not an intervention for pneumonic plague. Linens that are contaminated with body fluids or secretions should be handled with gloves and placed in leak-proof bags for laundering or disposal, but they do not need to be destroyed.

Choice a) is incorrect because morphine sulfate is an appropriate prescription for a client who has acute heart failure following MI. Morphine sulfate is an opioid analgesic that can relieve pain, anxiety, and dyspnea. Morphine sulfate can also reduce the preload and afterload of the heart, which can improve the cardiac output and oxygenation.

Choice b) is incorrect because laboratory testing of serum potassium is an appropriate prescription for a client who has acute heart failure following MI. Serum potassium is an electrolyte that is important for the normal function of the cardiac cells and muscles. Serum potassium can be altered by various factors, such as renal function, acid-base balance, medications, or dietary intake. Serum potassium can affect the cardiac rhythm and contractility, which can influence the outcome of the client.

Choice c) is correct because 0.9% normal saline IV at 50 mL/hr continuous is a prescription that requires clarification for a client who has acute heart failure following MI. 0.9% normal saline is an isotonic solution that can maintain the fluid balance and blood pressure in the body. However, 0.9% normal saline can also cause fluid overload and worsen the heart failure symptoms, such as edema, crackles, and dyspnea. The nurse should clarify with the provider if this prescription is appropriate for the client's condition and if there are any parameters or limits for the fluid administration.

Choice d) is incorrect because bumetanide 1 mg IV bolus every 12 hr is an appropriate prescription for a client who has acute heart failure following MI. Bumetanide is a loop diuretic that can increase the urine output and reduce the fluid volume and pressure in the body. Bumetanide can also decrease the preload and afterload of the heart, which can improve the cardiac output and oxygenation.