Which of the ff nursing interventions should a nurse perform to relieve tachycardia that may develop in a client with myocarditis from hypoxemia?

Correct Answer: C

Rationale: Administering supplemental oxygen is the most appropriate nursing intervention to relieve tachycardia that may develop in a client with myocarditis from hypoxemia. Myocarditis can lead to decreased oxygen delivery to the tissues, which may result in tachycardia as the body tries to compensate for the lack of oxygen. Providing supplemental oxygen will help increase oxygen levels in the blood, improving tissue perfusion and thus reducing the tachycardia. This intervention aims to address the underlying cause of the tachycardia in this situation.

Correct Answer: B

Rationale: The nurse should instruct the client to sit upright, leaning slightly forward when experiencing epistaxis (nosebleed). This position helps prevent blood from dripping down the back of the throat, reducing the risk of aspiration. In the case of a client with thrombocytopenia secondary to leukemia, the blood may have difficulty clotting due to low platelet counts. Therefore, it is important to minimize bleeding as much as possible. Lying supine with the neck extended may increase the risk of blood flowing down the throat, while blowing the nose or putting lateral pressure on it may aggravate the bleeding. Holding the nose while bending forward at the waist may also increase blood flow towards the head. Sitting upright, leaning slightly forward is the safest position to prevent complications associated with epistaxis in this case.

Correct Answer: C

Rationale: HUS typically presents with mild proteinuria along with increased BUN and creatinine, reflecting impaired renal function.

Correct Answer: A

Rationale: The highest priority nursing diagnosis in this scenario is Deficient fluid volume related to osmotic diuresis. The client's serum glucose level of 618mg/dl indicates severe hyperglycemia, which is likely causing osmotic diuresis leading to fluid volume deficit. The client's hot, dry skin, along with a heart rate of 116 beats/min, and blood pressure of 108/70mmHg are symptoms of dehydration due to fluid loss. If left untreated, deficient fluid volume can lead to serious complications such as hypovolemic shock. Therefore, addressing the fluid volume deficit is essential to stabilize the client's condition before other nursing diagnoses are addressed.

Correct Answer: B

Rationale: Examination under anesthesia by an experienced ophthalmologist is the gold standard for diagnosing retinoblastoma.