Zinc plays a vital role in the synthesis of which of the following?

Your young patient appears ill with a high fever, difficulty swallowing and breathing, and drooling. You see that he is sitting upright and leaning forwarding. What should you suspect?

A) Croup B) Pneumonia C) Epiglottitis D) Scarlet fever

Capture is evidenced on the EKG by the presence of

A) paced beats on top of intrinsic beats. B) an appropriate distance between intrinsic beats and paced beats. C) P waves or QRS complexes following the pacemaker spikes. D) pacemaker spikes at regular intervals.