CRT is an acronym for which clinical measure?

CRT is an acronym for which clinical measure?

• A. Cardiopulmonary resuscitation
• B. Capillary refill time
• C. Cerebrospinal fluid
• D. Chest X-ray

Answer: (B)

Capillary refill time is a quick bedside measure of peripheral perfusion. To test it, gently press on the mucous membranes (usually the gums or tongue) until they blanch, then release and observe how quickly color returns. A normal CRT in dogs and cats is typically under 2 seconds; a longer refill time suggests reduced peripheral perfusion from dehydration, shock, or vasoconstriction. Environmental temperature and mucous membrane pigmentation can affect readability, so interpret CRT alongside overall perfusion signs. It is not a resuscitation maneuver, not a sample of cerebrospinal fluid, and not an imaging study like a chest X-ray.

Capillary refill time is a quick bedside measure of peripheral perfusion. To test it, gently press on the mucous membranes (usually the gums or tongue) until they blanch, then release and observe how quickly color returns. A normal CRT in dogs and cats is typically under 2 seconds; a longer refill time suggests reduced peripheral perfusion from dehydration, shock, or vasoconstriction. Environmental temperature and mucous membrane pigmentation can affect readability, so interpret CRT alongside overall perfusion signs. It is not a resuscitation maneuver, not a sample of cerebrospinal fluid, and not an imaging study like a chest X-ray.