The answer to your problem is c
The p wave represents atrial contraction
Explanation:
How Age and Exercise Affect Your Max Heart Rate. The relationship between the heart and exercise has been studied for more than six decades and the research is clear: Max heart rate—the highest heart rate you can safely hit during exercise—decreases with age regardless of lifestyle or level of fitness.
Answer:
1. categorize patients and their ailments
2.acting as a communication link between a billing office and a care provider's office
3. translates diagnostic and procedural phrases into alpha-numeric codes
Explanation:
vitamin k helps with blood clots