While yellow stool can be caused by sweet potatoes, carrots, and foods with yellow food coloring, it can also indicate excess fat in the stool, which can be caused by a malabsorption disorder like celiac disease, lactose intolerance, or a disorder that prevents the pancreas from providing enzymes that digest fat.
Sinus arrhythmia irregular sinus arrythmia that originates in the SA node, alternating periods of slow and rapid HR, associated with inspiration. - Normal PQRST - Inconsistent R-R intervals - normal in dogs and horses
The SA node is the heart's electrical pacemaker. It is a small patch of cells located in the wall of the right atrium; the frequency with which the SA node discharges electricity determines the rate at which the heart normally beats. The SA node keeps the heart beating in a regular manner.