- #1
- 962
- 667
Is it ok to gently squeeze the bulb just after crossing the systolic or diastolic threshold, just to make sure of the exact value?
BP measurement : is it ok to re-inflate gently around threshold?
- Medical
- Thread starter Swamp Thing
- Start date
-
- Tags
- Measurement
In summary, while it is possible to get an accurate reading by squeezing the bulb after crossing the systolic or diastolic thresholds, there are tradeoffs. For some, this can be uncomfortable and if the cuff is inflated too much it can raise blood pressure. It is usually suggested that people use the automated machines at the doctor, rather than trying to do it at home.
- #2
berkeman
Mentor
- 68,291
- 21,996
There are tradeoffs. For some people (me included), the cuff can be a bit uncomfortable, and if it is overinflated or inflated for too long, it raises the blood pressure and interferes with an accurate reading.
When I take manual BPs, I slowly inflate the cuff and listen for the Korotkoff sounds to start and end (on the way up as I increase the cuff pressure). That gives me a pretty good idea of what the BP reading will be, so I only need to go about 5-10mmHg above Systolic before I start releasing pressure. I get the official Systolic and Diastolic numbers on the way down (which is the standard direction to get those numbers).
BTW, you can get automatic BP cuffs that take the pressures on the way up, and are much more gentle than the standard ones that often overinflate by 20mmHg or more. Much more comfortable!
When I take manual BPs, I slowly inflate the cuff and listen for the Korotkoff sounds to start and end (on the way up as I increase the cuff pressure). That gives me a pretty good idea of what the BP reading will be, so I only need to go about 5-10mmHg above Systolic before I start releasing pressure. I get the official Systolic and Diastolic numbers on the way down (which is the standard direction to get those numbers).
BTW, you can get automatic BP cuffs that take the pressures on the way up, and are much more gentle than the standard ones that often overinflate by 20mmHg or more. Much more comfortable!
- #3
Laroxe
Science Advisor
- 611
- 806
With the automatic machines which have largely taken over this is probably a bad idea, in fact some will simply go higher still to try and compensate.Swamp Thing said:
It's unlikely you will ever get an exact value, it's always changing depending on a variety of things, and you don't want to become over concerned about the accuracy, that can also distort the results. It's the averages seen over time that provide the most useful information, unless of course you've had an accident or something. It's usually suggested that you will get the most reliable readings (at home) by sitting, supporting the arm at a level similar to heart level, relax, stay still and quiet then start the machine. When it's finished, check the reading and give your arm a rest for at least 5 minutes, then repeat the process. It's usually best to avoid recording your BP after physical activity, eating or drinking (particularly coffee) and it's probably a good idea to be consistent in which arm you use. Take whichever of the two reading is lowest at the measure. Because this can be rather time-consuming, it's usually suggested people record their BP twice a day for 5-7 days, often for diagnosis or following changes in treatment, most people can cope with that.
Drs. do all sorts of variations on this which allows them to use the measures as diagnostic tests for various disorders, but this isn't usually suggested for people doing home measures. Interestingly, your home measures are likely to be the more accurate than the measures done at the Drs. there are too many things going on that cause your BP to rise during a Drs. visit.
FAQ: BP measurement : is it ok to re-inflate gently around threshold?
What is BP measurement?
BP measurement refers to the process of measuring blood pressure, which is the force of blood pushing against the walls of the arteries as the heart pumps blood. This is typically done using a sphygmomanometer and can be measured in a clinical setting or at home.
Is it safe to re-inflate the cuff gently around the threshold during BP measurement?
Re-inflating the cuff gently around the threshold can be safe if done correctly. However, it is generally recommended to follow standard procedures to avoid inaccurate readings or causing discomfort to the patient. Consulting guidelines from medical authorities or the device manufacturer is advisable.
Why might someone need to re-inflate the cuff during BP measurement?
Re-inflation may be necessary if the initial inflation did not reach the required pressure to accurately measure systolic and diastolic blood pressure. This can happen due to user error or technical issues with the device.
Can re-inflation affect the accuracy of BP measurements?
Yes, re-inflation can potentially affect the accuracy of BP measurements. It may lead to an overestimation or underestimation of blood pressure if not done properly. Consistent and correct technique is crucial for reliable readings.
What are the best practices for BP measurement to avoid the need for re-inflation?
Best practices include ensuring the cuff is properly fitted, the patient is in a relaxed and seated position, and the arm is at heart level. Inflate the cuff to a level 20-30 mmHg above the expected systolic pressure and deflate it slowly and steadily. Following these steps can help avoid the need for re-inflation.