PAPSMEAR
Papanicolaou
test
Definition
A
microscopic examination of cells scraped from the cervix.
How the test is performed
You will be
asked to lie on your back with your feet in the stirrups. A pelvic examination
will be done, and a speculum (an instrument used to open the walls of the
vaginal canal in order to examine the interior) will be inserted into your vagina
and opened slightly. A sample of cells from the outside and the canal of the
cervix is taken by gently scraping the outside of the cervix with a wooden or
plastic spatula (shown at the left), then inserting a small brush that looks
like a pipe cleaner into the canal. The cells are placed on a glass slide and
sprayed with a fixative, or put in a bottle containing a preservative, then
sent to the lab for examination.
How to prepare for the test
The health
care provider should be notified of a prior abnormal Pap smear, if you might be
pregnant,
and you are taking any medications or birth control pills. You should avoid
douching, using tampons, having intercourse, and tub bathing 24-hours before
the test. Empty your bladder just before the test.
How it feels
There may
be some discomfort and a feeling of pressure during the procedure. A small
amount of bleeding may occur after the test.
Risks
There are
no risks involved.
Why the test is performed
The Pap smear can detect cancerous or precancerous conditions of the cervix.
For recommendations on the frequency of having this test done, see also the
information on cervicitis.
Normal values
The test is
negative, meaning there are no abnormal cells present.
What abnormal results mean
The current system of reporting divides the results into three main areas:
benign or non-cancerous, pre-cancerous or showing some abnormal cell changes,
and malignant or possibly cancerous. A report in the latter two categories will
usually lead to a follow-up examination, including a repeat Pap smear and
possibly other tests. If you have never had an abnormal Pap smear before, and
the result indicates a mild abnormality, the Pap test is repeated in 6 months.
If the test result suggests a sever abnormality or cancer, you should undergo
immediate colposcopic evaluation with biopsies. If you have had an abnormal Pap
test in the past, or have had treatment for a precancerous change, you should
have an immediate colposcopy.
Special considerations
The
following drugs may affect the Pap smears:
- Colchicine
- Estrogen
- Podophyllin
- Progestins
- Silver nitrate