One thing I don't understand if the resting heart rate. I think someone else posted a similar question. Wouldn't a non resting heart rate be more accurate? I rarely sit stll and relax for 10 or more minutes during the day. Wouldn't those blood pressures going up and down be doing the damage?
Non-resting heart rate is not accurate in blood pressure monitoring. Or, at the very least, is not nearly as accurate as the resting heart rate.
The average heart beats between 60-80 times a minute. The blood pressure rises every time the heart beats, and falls when the heart relaxes between the beats.
The up and down variations of mean arterial pressure are a result of a distinctive throbbing nature of the cardiac output. The pulse pressure is determined by the stroke volume and a resistance to the flow in the arteries.
Many physical factors influence the arterial pressure -such as the heart rate, fluid volume, resistance and the thickness of the blood, circadian rhythm... All these physical factors are in turn influenced by many physiological factors -exercise, obesity, diet, existing diseases, stress, emotional highs and lows, alcohol consumption etc. Each individuals's arterial pressure response to these physiological factors varies. This results in a moment to moment variations in blood pressure. The heart rate - the pumping action of the heart- is also affected by many factors, such as a level of activity and stress, and fluctuates. This is why it is not a good idea to measure your blood pressure UNLESS you've been at rest for a few minutes.
For the above reasons and due to the continuous changes in blood pressure and heart rate, the best time to measure resting heart rate is in the morning, before getting out of bed. They recommend measuring one's blood pressure early in the morning as well-when fully rested after a previous nights' sleep, and again at night after the day's activities are over and the body slows down. The natural
variations in blood pressure throughout the day are considered normal and harmless. For some people, blood pressure variations of up to 40 points are normal. For most of us, the fluctuations in blood pressure are not nearly as high.
Unless you cannot control your blood pressure, you are not in any immediate danger of losing your kidney function. The main thing is to keep the blood pressure down. Not all of the people on dialysis have renal insufficiency due to high blood pressure. There are many other causes leading to ESRD. My kidneys have been damaged by hypertension. Perhaps it was the other way around and the kidney damage has resulted in severe hypertension. It has not been determined. Personally, it is the cardiovascular and cerebrovascular events I fear the most. Worrying about your kidneys, especially if they are healthy, will serve no purpose and will result in needless anxiety. This is bound to be reflected in your blood pressure readings. As our doctors keep repeating over and over, maintaing a good blood pressure control is the key.
Try to learn ways to reduce your anxiety - it could have a negative effect on your blood pressure control. Good luck!