Approach to hypotonia (newborn and infant) Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

Learning videos

Flashcards

Expert reviewed

Spaced Repetition

Mobile app

Custom Quizzes

1 of 4

A newborn boy delivered at term is evaluated in the neonatal intensive care unit (NICU) at 2 days of life due to feeding difficulties and choking episodes. Pregnancy and delivery were uneventful. The mother takes pyridostigmine for a chronic disorder but was asymptomatic throughout pregnancy. The infant has poor sucking during breastfeeding. Weight is 2900 g. Temperature is 37°C (98.6°F), pulse is 130/min, respirations are 45/min, blood pressure is 70/38 mm Hg, and oxygen saturation is 97% on room air. On examination, the newborn demonstrates a weak cry, bilateral ptosis, and generalized hypotonia with preserved reflexes. Cardiopulmonary and abdominal exams are unremarkable. Complete blood count (CBC), C-reactive protein, and creatinine kinase (CK) are within normal limits. Electromyography (EMG) and nerve conduction studies (NCS) demonstrate a decremental response of the compound muscle action potential with repetitive nerve stimulation. Which of the following findings is expected in the laboratory evaluation of this patient? 

Elimination tool

Choose an option: