Veterinary Technician Practice Exam

Tachycardia is defined as a:

1. Low heart rate

2. Normal heart rate

3. Elevated heart rate

4. Irregular heart rate

The correct answer is: Elevated heart rate

Tachycardia is defined specifically as an elevated heart rate, which typically refers to a heart rate exceeding the normal range for a given species. In dogs, for example, a resting heart rate above 160 beats per minute is often considered tachycardic, while in cats, a heart rate above 240 beats per minute is generally classified as such. Recognizing tachycardia is essential in veterinary medicine because it can indicate underlying health issues, stress, pain, or other conditions affecting the animal. Monitoring and understanding heart rates are crucial for assessing the overall cardiovascular health of an animal, guiding treatment decisions, and determining the need for further diagnostic testing.