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
Normal sinus rhythm not only indicate that the rhythm is normally generated by the sinus node and traveling in a normal fashion in the heart, but also that the heart rate, i.e. the rate at which the sinus node is generating impulses is within normal limits. There is no one normal heart rate, but this varies by age.