Which laboratory results should the nurse closely monitor in a client who has end-stage renal disease (ESRD.?

Choice B is correct because initiating a continuous infusion of IV fluids per prescription has highest priority for an infant with pyloric stenosis who is scheduled for a pyloromyotomy. Pyloric stenosis causes projectile vomiting and dehydration, which can lead to metabolic alkalosis and electrolyte imbalance. The infant needs IV fluids to correct these abnormalities and prevent complications.

Choice A is incorrect because marking an outline of the “olive-shaped” mass in the right epigastric area is not a priority action for an infant with pyloric stenosis who is scheduled for a pyloromyotomy. The “olive-shaped” mass is a palpable sign of pyloric stenosis, but it does not require any intervention before surgery.

Choice C is incorrect because monitoring amount of intake and infant's response to feedings is not a priority action for an infant with pyloric stenosis who is scheduled for a pyloromyotomy. The infant may have difficulty feeding due to vomiting and gastric distension, which can worsen their dehydration and malnutrition. The infant may need to be kept NPO (nothing by mouth) before surgery.

Choice D is incorrect because instructing parents regarding care of the incisional area is not a priority action for an infant with pyloric stenosis who is scheduled for a pyloromyotomy. The incisional area will need proper care after surgery, but this can be taught later when the infant is stable and ready for discharge.

Choice A reason: This is a correct answer because continuing to monitor the client for signs of an infection is important to detect any recurrence or complication of MRSA infection. MRSA is a type of bacteria that is resistant to many antibiotics and can cause serious skin, soft tissue, bone, joint, or bloodstream infections. The nurse should assess the client's vital signs, wound appearance, pain level, and laboratory results.

Choice B reason: This is not a correct answer because calling the healthcare provider for a prescription for linezolid is not necessary unless the client has an active MRSA infection that requires treatment. Linezolid is an antibiotic that can be used to treat MRSA infections, but it has potential side effects and interactions that need to be considered. The nurse should not prescribe or administer antibiotics without a valid order.

Choice C reason: This is a correct answer because collecting multiple sets of blood cultures for MRSA screening is important to identify any asymptomatic bacteremia or sepsis that could result from MRSA infection. MRSA can enter the bloodstream through wounds, catheters, or surgical sites and cause life-threatening complications such as endocarditis, osteomyelitis, or pneumonia. The nurse should obtain blood samples from different sites and times and send them to the laboratory for analysis.

Choice D reason: This is a correct answer because placing the client on contact transmission precautions is important to prevent the spread of MRSA to other clients, staff, or visitors. Contact transmission precautions include wearing gloves and gowns when entering the client's room, using dedicated or disposable equipment, and performing hand hygiene before and after contact with the client or their environment.

Choice E reason: This is not a correct answer because obtaining a sputum specimen for culture and sensitivity is not relevant to the client's history of MRSA wound infection. Sputum culture and sensitivity is a test that can be used to diagnose respiratory infections caused by bacteria, fungi, or viruses. The nurse should only obtain a sputum specimen if the client has signs or symptoms of a respiratory infection, such as cough, fever, chest pain, or dyspnea.