OV
!"
QU
!"#$%&'()*+,-./*0123
!" #$ %&'()*+
OQ QU
!"#$%&'(
!"#$
!"#$%&'()*+,-
OQ
!"#
!"#$%&'( )*+,-./)*01
OQ
!"#$%&'("#)*+,-.
!"#$%&'()*+,-.'/01234
!"#$%&$'()*+,-./
OQ
!"#$%&'()*+,-./ /01
!"#$%&' ()*+,-
QM
!"
!"#$%&'()*+*,-./0123
!"#$%&'()*+,-./01 23
!"#$%&'()*+,-./01)23
!"#$% &&'()*+,-./012
!"#$%&'()*+,-./012)*
!"#$%&'()*+,-./0123&
!"#$%&'()*+,-./(0123
!"#$%&'()*+,,-./0123
!"#$% &'()#*+ ,'-.
!"#$%&"'(!)*+,-./01(
!"#$%&'()*+,-./012345
R S
!"#$%&'()*+,-./012
T
!"#$%&'()*+,-./012
!"#$%&'()*+,-./)*012
!"#$%&'()*+,-./0)123
!"#$%&'(')*+,-./01-2
!"#$%&'()*+,-./01234
!"#$%&'()(*+,- %./01
!"#$%&'()*+,-./01234
!"#$%&'()*+,-./01-./
!"#$%&'()*+,-./0&12.
!"#$%&'()*+,-./01233
!"#$%&'()*+&,-.,/012
!"#$
Probing into Blood Pressure Fluctuation
Unlike body temperature, the blood pressure fluctuates throughout the day - high when tense, after brisk exercises / physical work /
much coffee or drinking, or in winter (blood vessels contracts). The diurnal rhythm varies like a sigmoid curve - a trough at 2-3 am and peaks
at 6-8 am and 4-6 pm. With a phaeochromocytoma (a tumour of the adrenal gland) the secondary hypertension often fluctuates a lot, so
does the "labile" type of essential hypertension (without apparent causes detectable). However, blood pressure fluctuation may also be due
to use or misuse of hypertension medication, e.g., Adalat, clonidine and the group of beta-blockers, e.g., Metoprolol, Bisoprolol and
Propranolol, etc., especially if a substantial dosage is discontinued abruptly through misunderstanding. Check the blood pressure over a
24-hr period - some patients have "white-coat hypertension" when the blood pressure is high only in the clinic. Manage your tension.
Recently, a cardiovascular specialist in Beijing had better control of labile hypertension by shifting the dose of a calcium antagonist from 5-
6 am to 7 pm. Above all, never stop any hypertension medication abruptly.
