A nurse is caring for a client who is experiencing anaphylactic shock in response to the administration of penicillin. Which of the following medications should the nurse administer first?

Methylprednisolone

Dobutamine

Furosemide

Epinephrine

Answer and Explanation

The Correct Answer is D

Methylprednisolone is a crucial medication in managing anaphylaxis but it takes longer to act compared to epinephrine and is not the immediate first-line treatment.
B. Dobutamine is a vasopressor used to treat heart failure. However, it's not indicated in the initial management of anaphylaxis.
C. Furosemide is a diuretic used for conditions like heart failure and edema. It has no role in treating anaphylaxis.
D. Epinephrine is the first-line treatment for anaphylactic shock. It rapidly reverses the life-threatening effects of anaphylaxis by constricting blood vessels, relaxing airway muscles, and stimulating the heart.

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Correct Answer is A

Explanation

A. Atrial fibrillation is consistent with the symptoms described. It causes irregular palpitations and dizziness due to the rapid and irregular ventricular rate. The significant pulse deficit can occur because the irregular rhythm may lead to intermittent weak or absent pulses. The ECG typically shows an irregular rhythm with no identifiable P waves and an irregularly irregular ventricular response.
B. Sinus bradycardia does not usually cause a rapid and irregular heart rate. It is characterized by a regular rhythm with a slow heart rate. While it can cause fatigue and dizziness, it does not typically present with an irregular rhythm or a significant pulse deficit. Therefore, it is less consistent with the symptoms described.
C. Sinus tachycardia is characterized by a rapid but regular heart rate. It does not typically present with an irregular rhythm or significant pulse deficit. While it may cause symptoms such as palpitations and

dizziness, the regular rhythm and absence of irregularity in the ECG make it less likely to be the cause of the significant irregular pulse deficit described.
D. First-degree AV block does not usually cause a rapid and irregular heart rate. It typically presents with a regular rhythm but with a prolonged PR interval. It is not typically associated with irregular palpitations or a significant pulse deficit. The symptoms described are not characteristic of first-degree AV block.

A. Slows intestinal motility B. Relieves pain C. Prevents dysrhythmias D. Dissolves blood clots

Correct Answer is C

Explanation

A. This is the action of medications like anticholinergics, not lidocaine.
B. Lidocaine does have local anesthetic properties, but it's not used in this context to relieve pain. It's used for its anti-arrhythmic properties.
C. Lidocaine is a class IB anti-arrhythmic medication. It suppresses abnormal heart rhythms, making it a crucial drug in treating cardiac arrest.
D. This is the action of thrombolytic medications like tissue plasminogen activator (tPA), not lidocaine.

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A nurse is caring for a client who is experiencing anaphylactic shock in response to the administration of penicillin. Which of the following medications should the nurse administer first?

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Naxlex Comprehensive Predictor Exams

A nurse in an urgent care center is assessing a client who reports a sudden onset of irregular palpitations, fatigue, and dizziness. The nurse finds a rapid and irregular heart rate with a significant pulse deficit. Which of the following dysrhythmias should the nurse expect to find on the ECG?

Correct Answer is A

Explanation

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Correct Answer is C

Explanation

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