A modified Pap test technique designed to reduce some of the technical problems inherent in the traditional type of Pap smear.
In the traditional Pap test, cell samples are obtained from the vagina, cervix, and cervical canal and spread on a glass slide. In the ThinPrep Pap test, cell samples are collected using a special brush that is immediately washed in a special fluid. The ThinPrep machine then filters out the cells from the solution and deposits them in a thin uniform monolayer (a single layer of cells) on a glass slide.
The ThinPrep Pap method has some significant advantages. It removes contaminants such as blood and mucus which frequently obscure cells in the traditional Pap smear. The monolayer of cells is also easier to examine under the microscope. This results in an increased rate of detection of abnormal cells. The disadvantage is the increased cost incurred by the collection fluid and the cost and continuing operation of the machine.
- Test, tilt-table
Tilt-table testing involves placing the patient on a table with a foot-support. The table is tilted upward and the blood pressure and pulse are measured and symptoms are recorded with the patient in diverse positions. The tilt-table test is designed to detect postural hypotension (orthostatic hypotension), a condition that results from changing body position from […]
- Test, treadmill
See exercise cardiac treadmill.
- Test, VDRL
A blood test for syphilis (VDRL stands for Venereal Disease Research Laboratory) that detects an antibody that is present in the bloodstream when a patient has syphilis.
- Test, Venereal Disease Research Laboratory
A blood test for syphilis. Venereal Disease Research Laboratory is commonly abbreviated VDRL. A negative (“nonreactive”) VDRL is compatible with a person not having syphilis. However, a person may a negative VDRL and still have syphilis since, in the early stages of the disease, the VDRL often gives negative results. This is called a false […]
- Test, visual acuity
This test measures how well you see at various distances. It is the familiar eye chart test. The eye chart itself — the usual one is called Snellen’s chart — is imprinted with block letters that line-by-line decrease in size, corresponding to the distance at which that line of letters is normally visible. The letters […]