Welcome to the Student Chapter of the

American Association of Equine Practitioners

at the North Carolina State University College of Veterinary Medicine!

SCAAEP is proud to present our first Pony Puzzler!

An eight-year-old pony mare collapsed two minutes after receiving an intramuscular injection of procaine penicillin. The mare’s mucous membranes are pale and cyanotic, and the pulse is rapid (heart rate 70bpm) and weak. Tachypnea and dypsnea are observed. On auscultation widespread crackling lung sounds were heard. Frothy fluid drains from the nose. After about one minute, the pony dies.

a.     What is the most likely diagnosis?

b.     How could you have attempted treatment if the pony had survived long enough?

c.     What other adverse reaction is more commonly associated with administration of procaine penicillin?

Once you have figured out the correct answer, please place it in the box that is located on the SCAAEP board. One entry from all of the correct answers will be picked to receive a 10 dollar gift card~!