Effect of digital rectal examination (and ejaculation) on serum prostate-specific antigen after twenty-four hours. A randomized, prospective study.
Adult; Humans; Male; Middle Aged; Time Factors; Aged; Prospective Studies; Rectum; *Palpation; Ejaculation; Prostate-Specific Antigen/*blood; 80 and over
The purpose of this randomized, controlled, clinical trial was to determine the effect of the digital rectal examination (DRE) on the prostate-specific antigen (PSA) serum levels in view of conflicting literature reports and screening methods and misconceptions by physicians. We showed that the DRE had no clinically important effect on PSA values twenty-four hours later. The mean PSA rose from 1.57 to 1.62 ng/mL, similar to the controls. Ejaculation had no meaningful effect on the serum PSA values.
McAleer J K; Gerson L W; McMahon D; Geller L
Urology
1993
1993-02
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Determination of laboratory specific percent normal sperm morphology value based on prevasectomy ("fertile") ejaculates.
Ejaculation; Fertility; Humans; Male; Reference Values; Reproducibility of Results; Sperm Count; Sperm Motility; Spermatozoa/classification/*cytology; Vasectomy
Semen assessments were performed on ejaculates from 25 men with proven fertility requesting vasectomy. Multiple cytological slides were made simultaneously from each ejaculate and analyzed by a single technician. The morphology data obtained were analyzed for repeatability. The mean +/- SD for normal sperm morphology was 30.6+/-7.3, and the within-subject repeatability was \textless or =1 SD of the mean for 17 of 25 ejaculates. Technician and laboratory specific criteria for the percent normal sperm morphology component of a semen analysis report (that are clinically meaningful) can be developed using the approach described herein.
Babbo C J; Hecht B R; Jeyendran R S
Archives of andrology
1999
1999-10
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
<a href="http://doi.org/10.1080/014850199262634" target="_blank" rel="noreferrer noopener">10.1080/014850199262634</a>