Get Virtual Care
For Businesses
About Us
A member asked:
Can you tell me in an ecg, why does the amplitude of your heart rate and pulse change when one is dehydrated?
A doctor has provided 1 answer
Physiology: Cardiac output depends on stroke volume (the volume pumped in 1 beat) and heart rate. When dehydrated, your preload is reduced reducing stroke volume, so the heart speeds up to compensate in its attempt to maintain stable cardiac output. (IOW, if you can't pump more, pump faster).
Answered 4/26/2015
3.8k views
Thank
Related Questions
A member asked:
After running, heart goes fast and ever so many beats there will be a thud and the pulse slows, then goes back up and repeats. Had ecg, 24hecg, echo?
2 doctors weighed in across 2 answers
A member asked:
Recently i had incresing pulse with a sudden push in heart. After ecg,eco confirms normal. I had sliding hiatal hernia. Is it the cause?
A doctor has provided 1 answer
A member asked:
Sometimes there's a flutter near my throat, & when I take pulse, heart beat feel weaker & has pause, then return to normal. Benign? routine ECG is ok.
A doctor has provided 1 answer
A member asked:
Have done echo heart, ecg, stresstest, chest xray, doc found ectopic atrial tachycardia.It doesn't xplain my pain and high pulse when eat not present?
A doctor has provided 1 answer
People also searched for:
Does the amplitude of your pulse and your heart rate change if you were dehydrated?
I am 27 year female. As part of my pre employment medical test, I went for ECG that said low QRS amplitude and RS inversion area bw v1 and v2. The report said probably abnormal ECG. Is it a reason to worry? I have no heart ailment history?
I have normal regular pulse rate but my heart beats hard i feel each beat in my chest even arm since 3 wks dr did ecg its normal no medicine given
Dizziness,uncomfortable feeling on left side of neck ear&head,numbness on lips and face and tongue,high pulse rate,fast heart beat.ECG normal.y?
Pulse/Heart beat can be felt in feet, hands,normal echo, ecg, no ishaemia in tmt, no issues in general its just i started observing it, bp is normal.
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
