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What Causes Sudden Increase In The Heart Beat Rate?
when i wake up and then stand up my heart starts to pound and race. i almost blacked out. I got light headed and very dizzy. Also i had exteame dry mouth i couldnt even spit. I went to er they said my heart rate was 150 they let me go when it reached 110. they said it was anxiety. they put me on medication for anxiety but this keeps happening almost everytime i wake up.
Sat, 30 Mar 2019
It may be due to postural hypo-tension as part of autonomic disturbance in view of light headedness and dizzines (as you complained) on standing up.
BP is measured on lying and then on standing.
Orthostatic or postural hypotension (OH) is diagnosed when there is a reduction of ≥20mmHg in SBP or ≥10mmHg in DBP within 3 min of standing and also rise in pulse rate.
Normally upon standing from lying position, cardiovascular regulation by the autonomic nervous system (ANS) prevents more than a 5–10mm Hg drop in SBP, increases DBP and increases the pulse rate by 10–25 beats per minute (bpm).
Mild dehydration(dry mouth) can cause also symptoms of orthostatic hypotension,Take plenty of water orally.
In case of significant postural drop in BP,go for serum cortisol level at 0800 AM, to exclude adrenocortical insufficiency.
Regards,
Dr Tushar Kanti Biswas, Internal Medicine Specialist
BP is measured on lying and then on standing.
Orthostatic or postural hypotension (OH) is diagnosed when there is a reduction of ≥20mmHg in SBP or ≥10mmHg in DBP within 3 min of standing and also rise in pulse rate.
Normally upon standing from lying position, cardiovascular regulation by the autonomic nervous system (ANS) prevents more than a 5–10mm Hg drop in SBP, increases DBP and increases the pulse rate by 10–25 beats per minute (bpm).
Mild dehydration(dry mouth) can cause also symptoms of orthostatic hypotension,Take plenty of water orally.
In case of significant postural drop in BP,go for serum cortisol level at 0800 AM, to exclude adrenocortical insufficiency.
Regards,
Dr Tushar Kanti Biswas, Internal Medicine Specialist
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