When to come with full bladder?
Generally all lower abdomen and whole abdomen examinations require
full bladder. Also examinations of KUB and early pregnancy
(generally up to 3-4 months) will require full bladder. Full bladder
means you have to take lot of water at least 1-2 hrs before
examination and not pass urine. A well distended urinary bladder
helps in seeing uterus, ovaries and adnexa properly in females and
prostate in males. It also helps in seeing small stones in bladder
and ureters in KUB examination. It is important to note that an urge
to pass urine does not indicate you are having full bladder. A
really full bladder will make you uncomfortable. We need you to have
full bladder, but you should be comfortable. For these examinations,
come with some margin to wait as your turn may not come immediately
on reaching clinic.
Examination of children
Examination of small children is difficult if they are crying. A
well satisfied child is less prone to crying. We do not normally
recommend them to be kept empty stomach except in some situations.
Sometimes child may need to be sedated.
When you come in for your ultrasound
examination for seeing the fetal well-being?
Drink 2 to 3 glasses of fruit juice/Water 20-30 minutes prior to the
appointment unless otherwise ordered by your physician. We would
like your baby to be awake during your exam for more thrilling
experience. We would also like some fluids in your bladder to bring
the baby’s head out of the pelvis, but it does not need to be
CT Scan Examination
Most of the examination will require administration of contrast.
This is generally so when we suspect infective/inflammatory
pathology or mass lesion. It is also administered for vascular
studies and other special applications. Reports for kidney function
such as blood urea, serum creatinine or any other investigation that
may have been done for kidneys should be brought at the time of
examination. Any history of diabetes and drugs that are being taken
should be available.
CT Coronary Angiography
It is preferable to be fasting three hours prior to the test. Also
one or two glasses of water one hour prior to investigation will
give better results. Please bring all your relevant medical records
such as any procedure done, creatinine and sugar levels and details
of drugs being used. After the procedure, we advise you to again
take 3-4 glasses of water in next 2 hours.
Upper abdomen and whole abdomen examinations
It is essential to come with overnight fasting for these
examinations. Investigations will take 2-3 hrs or even more to
complete as oral contrast is generally given and it takes time to
reach colon. We normally do not ask patient to come with full
bladder as it will generally fill during the course of
administration of oral contrast. However, you are required not to
pass urine during this examination.
KUB and lower abdomen examinations
There is no need of fasting for these examinations but full bladder
is a requirement. Further, avoid examination immediately after
taking food. A gap of 2 hrs is advisable whenever contrast is to be
Normally no preparation is required for these examinations. But in
case of children and those with neurological problems, may need to
be sedated/anaesthetized as good examination can not be done, if
patient is moving his/her head.
Allergy to drugs and contrast media
Though we use non-ionic contrast media which has very few reactions,
however, a severe reaction is a possibility. If you are allergic to
any drug or contrast media, you must tell us. This may require
modification and different planning for examination.
Your Creatinine levels should be known.
If you are diabetic, then the history of the drugs you arer taking
should be known
Upper/ whole abdomen examinations/MRCP
The precautions are same as for CT scan. You have to come empty
stomach and no fluid such as water just before the examination.
KUB and lower abdomen examinations
Patient is required to be full bladder i.e. urinary bladder should
Though in most of the examinations no contrast is used. But some
will require administration of contrast. This is generally so when
we suspect infective/inflammatory pathology or mass lesion. Some
times it is also administered for vascular studies and other special
applications. Reports for kidney function such as blood urea, serum
creatinine or any other investigation that may have been done for
kidneys should be brought at the time of examination. Any history of
allergy to drugs, diabetes and drugs that are being taken for
treatment should be available.
X Ray Examination
Generally no preparation is required for routine
x-ray examinations. But x-ray of abdomen/ KUB/ LS spine will require
you to have preparation previous night with charcol/unienzyme and
Special x-ray investigations will required additional preparations
and these will be given to you at the time of appointment itself.
Pregnant women are advised not to get an Xray based investigations
like X-ray, OPG Scan, CT Scan, Mammography etc. However in some
circumstances, if clinician requires the investigation, kindly
inform the radiologist at the centre about your status.