Nursing Elites

1. After multiple attempts to stop drinking, an adult male is admitted to the medical intensive care unit (MICU) with delirium tremens. He is tachycardic, diaphoretic, restless, and disoriented. Which finding indicates a life-threatening condition?

• A. Widening QRS complexes and flat T waves
• B. Tachycardia and elevated blood pressure
• C. Restlessness and anxiety
• D. Diaphoresis and dehydration

Correct answer: A

Rationale: The correct answer is A: Widening QRS complexes and flat T waves. In the context of an adult male with delirium tremens and symptoms like tachycardia, diaphoresis, restlessness, and disorientation, the presence of widening QRS complexes and flat T waves on an ECG suggests severe electrolyte imbalance, particularly hypokalemia. This severe electrolyte imbalance can lead to life-threatening arrhythmias such as ventricular tachycardia or fibrillation. Tachycardia and elevated blood pressure (choice B) can be expected in delirium tremens but do not directly indicate a life-threatening condition as widening QRS complexes and flat T waves do. Restlessness and anxiety (choice C) are common symptoms of delirium tremens but do not specifically signify a life-threatening condition. Diaphoresis and dehydration (choice D) are also common in delirium tremens but do not directly point towards a life-threatening electrolyte imbalance as widening QRS complexes and flat T waves do.

2. A client with a history of chronic kidney disease is scheduled for a renal biopsy. Which laboratory value should the nurse report to the healthcare provider before the procedure?

• A. Serum creatinine of 1.8 mg/dl
• B. Prothrombin time of 18 seconds
• C. Hemoglobin of 9 g/dl
• D. Platelet count of 90,000/mm3

Correct answer: D

Rationale: A platelet count of 90,000/mm3 is low and concerning for a client scheduled for a renal biopsy, as it increases the risk of bleeding. Thrombocytopenia, indicated by a low platelet count, can lead to impaired blood clotting, posing a significant risk of bleeding during or after the biopsy procedure. Elevated serum creatinine levels may be expected in chronic kidney disease but are not directly related to bleeding risk during a renal biopsy. Prothrombin time and hemoglobin levels are not as directly relevant to the bleeding risk associated with a renal biopsy as platelet count.

3. The nurse is reviewing a client's electrocardiogram and determines the PR interval (PRI) is prolonged. What does this finding indicate?

• A. Initiation of the impulses from a location outside the SA node
• B. Inability of the SA node to initiate an impulse at the normal rate
• C. Increased conduction time from the SA node to the AV junction
• D. Interference with the conduction through one or both ventricles

Correct answer: C

Rationale: When the PR interval is prolonged, it signifies an increased conduction time from the SA node through the AV junction. This finding is characteristic of a first-degree heart block where there is a delay in the electrical conduction at the level of the AV node. Choices A, B, and D are incorrect as they do not accurately reflect the significance of a prolonged PR interval.

4. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which intervention should the nurse implement first?

• A. Administer oxygen therapy as prescribed.
• B. Elevate the head of the bed.
• C. Assess the client's level of consciousness.
• D. Obtain a sputum culture.

Correct answer: A

Rationale: Administering oxygen therapy as prescribed is the initial priority when managing an exacerbation of COPD. In COPD exacerbations, the primary concern is hypoxemia due to impaired gas exchange. Administering oxygen helps to improve oxygenation and prevent further complications. Elevating the head of the bed can aid in breathing comfort but is not the priority over ensuring adequate oxygen supply. Assessing the client's level of consciousness is important but comes after ensuring oxygenation. Obtaining a sputum culture is relevant for identifying pathogens but is not the immediate priority in addressing hypoxemia.

5. The nurse is caring for a client with diabetic ketoacidosis (DKA). Which laboratory value requires immediate intervention?

• A. Serum glucose of 300 mg/dL
• B. Serum potassium of 4.5 mEq/L
• C. Serum bicarbonate of 15 mEq/L
• D. Serum pH of 7.28

Correct answer: D

Rationale: A serum pH of 7.28 indicates metabolic acidosis in a client with diabetic ketoacidosis (DKA), requiring immediate intervention. In DKA, the body produces excess ketones, leading to acidosis. Monitoring and correcting the pH level is crucial in managing DKA. Serum glucose levels may be high in DKA, but the immediate concern is correcting the acidosis to prevent complications. Serum potassium and bicarbonate levels are also important but not as immediately critical as correcting the acidosis in DKA.

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