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A nurse is caring for a client who is has developed anaphylactic shock in response to the ingestion of strawberries. Which of the following medications should the nurse administer first?

A.

Epinephrine

B.

Dobutamine

C.

Methylprednisolone

D.

Furosemide

Answer and Explanation

The Correct Answer is A

A. Epinephrine –  Epinephrine is the first-line treatment for anaphylactic shock. It rapidly reverses airway constriction, hypotension, and swelling by stimulating alpha and beta-adrenergic receptors, leading to bronchodilation, vasoconstriction, and increased cardiac output.
B. Dobutamine – Dobutamine is a positive inotrope used to treat cardiogenic shock and may support cardiac output, but it does not address the airway or allergic component of anaphylaxis.
C. Methylprednisolone – This corticosteroid may be given to reduce inflammation and prevent delayed reactions, but it has a slower onset of action and is not the priority in emergency management.
D. Furosemide –  This diuretic is used in fluid overload or pulmonary edema, not in the management of anaphylaxis.


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Related Questions

Correct Answer is B

Explanation

A. Sick sinus syndrome – This involves an abnormal SA node function, often with varying rhythm disturbances (e.g., sinus pauses, bradycardia-tachycardia). The strip described is regular and does not reflect these changes.
B. Normal sinus rhythm – The rhythm is regular, the PR interval is within normal limits (0.12–0.20 seconds), the heart rate is 60 beats/min (within the normal range of 60–100), and P waves precede each QRS complex consistently.
C. Sinus bradycardia – Although the rate is 60, which is at the low end of normal, it is not below 60. Bradycardia is defined as <60 bpm.
D. First-degree heart block – First-degree AV block is characterized by a prolonged PR interval >0.20 seconds. The PR interval here is 0.16 seconds, which is normal.

Correct Answer is B

Explanation

A. Blood flowing back from the left atrium to the left ventricle describes mitral regurgitation, not aortic regurgitation.
B. Aortic regurgitation involves the backflow of blood from the aorta into the left ventricle during diastole due to an incompetent aortic valve. This leads to volume overload in the left ventricle.
C. Obstruction of blood from the left atrium to the left ventricle occurs in mitral stenosis, not aortic regurgitation.
D. Obstruction of blood flow from the left ventricle is characteristic of aortic stenosis, not aortic regurgitation.

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