The client hospitalized with infective endocarditis develops sharp flank pain and hematuria. The nurse notifies the physician, recognizing that these clinical manifestations may indicate:

vegetative embolization to the kidneys.

hemolysis of red blood cells by hemolytic microorganisms.

septicemia resulting in decreased glomerular blood flow.

bacterial infection in the kidneys.

Answer and Explanation

The Correct Answer is A

A. vegetative embolization to the kidneys: Infective endocarditis is an infection of the heart valves or the endocardium. Vegetations (clumps of bacteria, fibrin, and platelets) can form on the damaged heart structures. These vegetations are fragile and can break off, forming emboli that travel through the bloodstream to various organs. Embolization to the kidneys can cause renal infarction, leading to sharp flank pain due to ischemia or infarction of kidney tissue and hematuria.

B. hemolysis of red blood cells by hemolytic microorganisms: While some bacteria can cause hemolysis, it is not typically associated with localized flank pain. Hemolysis would present with systemic signs such as jaundice, fatigue, and anemia, not acute flank pain and visible hematuria.

C. septicemia resulting in decreased glomerular blood flow: Septicemia may impair renal perfusion over time but would more likely lead to generalized signs of acute kidney injury, such as oliguria and rising creatinine levels, rather than acute flank pain and hematuria.

D. bacterial infection in the kidneys: Acute pyelonephritis can cause flank pain and hematuria, but in the context of infective endocarditis, embolic events are a more likely and urgent explanation for new-onset symptoms, particularly sharp localized pain.

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Correct Answer is C

Explanation

A. Radiofrequency ablation: This is used to treat tachyarrhythmias such as atrial fibrillation, atrial flutter, or supraventricular tachycardia (SVT). The ECG shown does not demonstrate any tachycardic rhythm rather, it shows a bradyarrhythmia with dropped QRS complexes, which suggests a conduction block, not a reentrant circuit.

B. Administration of amiodarone: Amiodarone is primarily used for ventricular arrhythmias or atrial fibrillation. It is not effective in treating bradyarrhythmias or heart blocks such as those seen in this rhythm strip.

C. Insertion of a pacemaker: The rhythm strip shows intermittent dropped QRS complexes with consistent P waves—this is indicative of second-degree AV block, Mobitz II. This type of conduction block can progress to complete heart block and is often treated with the insertion of a permanent pacemaker to maintain cardiac output.

D. Administration of adenosine: Adenosine is used to terminate SVT by temporarily blocking AV node conduction. It is contraindicated in heart blocks, especially Mobitz II or third-degree AV block, because it can worsen the block and cause asystole.

A. Dopamine and 50% non-rebreather mask B. Nesiritide IV infusion and digoxin PO C. Diazepam IV push and metoprolol IV D. Morphine IV and oxygen 2 liters via nasal cannula

Correct Answer is D

Explanation

A. Dopamine and 50% non-rebreather mask: Dopamine is a vasopressor used in hypotension or shock, an inotropic agent used to improve cardiac output, not typically first-line for anxiety or respiratory distress. A non-rebreather mask may provide high oxygen levels but can be overwhelming and exacerbate anxiety if not well tolerated.

B. Nesiritide IV infusion and digoxin PO: Nesiritide is a vasodilator which may reduce preload and afterload in heart failure, and digoxin is a positive inotrope that can improve contractility, but neither offers rapid relief for anxiety and dyspnea. These medications have slower onset and are not used primarily for symptom control in acute distress.

C. Diazepam IV push and metoprolol IV: While diazepam may reduce anxiety, it can depress respiration, which is dangerous in decompensated heart failure with potential pulmonary edema. Metoprolol reduces heart rate and contractility and must be used cautiously in acute settings.

D. Morphine IV and oxygen 2 liters via nasal cannula: Morphine reduces preload, anxiety, and the sensation of breathlessness, making it ideal in acute decompensated heart failure. Low-flow oxygen improves oxygenation without overwhelming the patient. This combination directly targets both physiologic and psychological distress.

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The client hospitalized with infective endocarditis develops sharp flank pain and hematuria. The nurse notifies the physician, recognizing that these clinical manifestations may indicate:

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is D

Explanation

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