Sorted By Test Name - Mayo Medical Laboratories

9810
9812
FGNRH
90165
GOOS
82714
Clinical References: Homburger HA: Allergic diseases. In Clinical Diagnosis and Management by
Laboratory Methods. 21st edition. Edited by RA McPherson, MR Pincus. New York, WB Saunders
Company, 2007, Chapter 53, Part VI, pp 961-971
Gomori's Stain for Iron
Useful For: Used for demonstration of hemosiderin.
Reference Values:
The laboratory will provide a pathology consultation and stained slide.
Gomori's Stain for Reticulum
Useful For: A stain used in histology as a connective tissue stain.
Reference Values:
The laboratory will provide a pathology consultation and stained slide.
Gonadotropin Releasing Hormone (Gn-RH)
Clinical Information: Gonadotropin-Releasing Hormone (Gn-RH), also known as Luteinizing
Hormone-Releasing Hormone (LH-RH), is a decapeptide secreted pulsatily from the hypothalamus. It
stimulates the release of the Gonadotropins - Luteinizing Hormone and Follicle Stimulating Hormone -
exerting a stronger effect on Luteinizing Hormone. Testosterone and Estradiol, whose release is
stimulated by the Gonadotropins, exert a negative feedback control on LH-RH both at the hypothalamic
site and by decreasing pituitary receptor binding. LH-RH levels are low in patients with hypothalamic
hypogonadism differentiating them from the high levels usually found in primary hypopituitary
hypogonadism. Accentuation of the LH-RH pulse occurs at the onset of puberty triggering the release of
LH and FSH required in pubertal development. LH-RH is stimulated by Epinephrine and suppressed by
Dopamine and opiates. LH-RH and some of its agonists are frequently used to induce ovulation.
Reference Values:
Adult Reference Range(s):
Males: 4.0-8.0 pg/mL
Females: 2.0-10.0 pg/mL
Test Performed by: Inter Science Institute
944 West Hype Park
Inglewood, CA 90302
Goose Feathers, IgE
Clinical Information: Clinical manifestations of immediate hypersensitivity (allergic) diseases are
caused by the release of proinflammatory mediators (histamine, leukotrienes, and prostaglandins) from
immunoglobulin E (IgE)-sensitized effector cells (mast cells and basophils) when cell-bound IgE
antibodies interact with allergen. In vitro serum testing for IgE antibodies provides an indication of the
immune response to allergen(s) that may be associated with allergic disease. The allergens chosen for
testing often depend upon the age of the patient, history of allergen exposure, season of the year, and
clinical manifestations. In individuals predisposed to develop allergic disease(s), the sequence of
sensitization and clinical manifestations proceed as follows: eczema and respiratory disease (rhinitis and
bronchospasm) in infants and children less than 5 years due to food sensitivity (milk, egg, soy, and wheat
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