A 9-month-old infant accidentally ingests an unknown quantity of digitalis. The infant has congenital heart disease, characterized by ventricular septal defect, patent foramen ovale, and patent ductus arteriosus. Cardiac evaluation shows tachycardia (152 beats/minute) and a pansystolic murmur. The abdomen is distended but nontender. The remainder of the examination is unremarkable. Serum electrolytes reveal a potassium level of 5.7 mEq/L. An electrocardiogram (EKG) demonstrates a complete atrioventricular dissociation, with a good ventricular rhythm. The most important noncardiac manifestation of toxicity in this infant is:

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The material on the PANCE and PANRE is organized by the NCCPA into two dimensions, as indicated in the content blueprint for the examination. - Organ systems and the diseases, disorders and medical assessments physician assistants encounter within those systems; and - The knowledge and skills physician assistants should exhibit when confronted with those diseases, disorders and assessments. Medical Content Categories % Allocation: Cardiovascular System 13% Dermatologic System 5% Endocrine System 7% Eyes, Ears, Nose, and Throat 7% Gastrointestinal System/Nutrition 9% Genitourinary... Show more

A 9-month-old infant accidentally ingests an unknown quantity of digitalis. The infant has congenital heart disease, characterized by ventricular septal defect, patent foramen ovale, and patent ductus arteriosus. Cardiac evaluation shows tachycardia (152 beats/minute) and a pansystolic murmur. The abdomen is distended but nontender. The remainder of the examination is unremarkable. Serum electrolytes reveal a potassium level of 5.7 mEq/L. An electrocardiogram (EKG) demonstrates a complete atrioventricular dissociation, with a good ventricular rhythm. The most important noncardiac manifestation of toxicity in this infant is:






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