Mayo Test Catalog, (Sorted By Test Name) - Mayo Medical ...

FER
81641
SEMA
9206
Interpretation: The normal daily intake of selenium is 10 to 35 mcg/day, therefore, the usual daily
output should be the same. Daily excretion of 40 mcg/g creatinine
indicates excessive intake. There is no known toxicity to humans due to intake of modest excesses.
Grossly excessive intake (daily output >500 mcg/g creatinine) may have a teratogenic impact. This effect
has been demonstrated in animals.
Reference Values:
> or =16 years: 15-40 mcg/g creatinine
Reference values have not been established for patients that are less than 16 years of age.
Clinical References: 1. Fleming CR, McCall JT, O'Brien JF, et al: Selenium status in patients
receiving home parenteral nutrition. J Parenter Enteral Nutr 1984;8:258-262 2. Chariot P, Bignani O:
Skeletal muscle disorders associated with selenium deficiency in humans. Muscle Nerve 2003
Jun;27(6):662-668 3. Kvicala J, Zamrazil V, Nemecek J, Anke M: Intake of selenium by seniors of South
Bohemia and urine selenium of seniors in the course of a 1-year supplementation by various selenium
species. Tr Element Electro 2008;25:21-24
Semen Analysis
Clinical Information: Semen is composed of spermatozoa suspended in seminal fluid (plasma). The
function of the seminal fluid is to provide nutrition and volume for conveying the spermatozoa to the
endocervical mucus. Male infertility can be affected by a number of causes. Chief among these is a
decrease in the number of viable sperm. Other causes include sperm with abnormal morphology and
abnormalities of the seminal fluid.
Useful For: Determining male fertility status
Interpretation: See Reference Values.
Reference Values:
Appearance: normal
Volume: > or =1.5 mL
pH: > or =7.2
Motile/mL: > or =6.0 x 10(6)
Sperm/mL: > or =15.0 x 10(6)
Motility: > or =40%
Grade: > or =2.5
Motile/ejaculate: > or =9.0 x 10(6)
Viscosity: > or =3.0
Agglutination: > or =3.0
Supravital: > or =58% live
Fructose: positive
Note: Fructose testing cannot be performed on semen analysis specimens shipped through Mayo
Medical Laboratories. If patient is azoospermic, refer to FROS/81164 Fructose, Semen or Seminal
Plasma. Submit separate specimen to rule out ejaculatory duct blockage. Positive result indicates no
blockage.
Semen Analysis with WHO Morphology
Clinical Information: Semen is composed of spermatozoa suspended in seminal fluid (plasma). The
function of the seminal fluid is to provide nutrition and volume for conveying the spermatozoa to the
endocervical mucus. Male infertility can be affected by a number of causes. Chief among these is a
decrease in the number of viable sperm. Other causes include sperm with abnormal morphology and
abnormalities of the seminal fluid. The World Health Organization morphology procedure provides a
rapid, subjective estimate of sperm shape and size and reports the presence of WBCs and germinal cells.
Multiple semen analyses are usually conducted over the course of the spermatogenic cycle (approximately
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