q.q.h.

q.q.h.

 (L.)
qua´que quar´ta ho´ra (every four hours).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

q.q.h.

L. quaque quarta hora, every four hours.
Medical Dictionary, © 2009 Farlex and Partners