The Pathologist Reports That the Specimens Have Insufficient Sample for Diagnosis . Some physicians are less vigorous in obtaining specimens, and a single pass of the catheter may not yield adequate tissue. A second pass can be made with the suction catheter if it is not contaminated when it is emptied after the first pass. The second pass almost always prevents reporting an insufficient sample. When Applied to the Cervix .
Topical anesthesia can reduce the discomfort from the tenaculum.
Placement of the tenaculum can make the procedure safer for the patient. The tenaculum stabilizes the cervix and allows the physician to straighten the uterocervical angle. The tenaculum can reduce the chances of posterior perforation when the plastic catheter is inserted through the cervix and then through the thin-walled lower uterine segment. Physician Training Endometrial biopsy is a fairly easy technique to learn. Physicians are often comfortable performing the procedure unassisted after two to five precepted procedures.