Prolactin 

Prolactin 

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The reference range for prolactin in females is as follows:

Nongravid/nonlactating: 2-29 ng/mL

Gravid: 10-209 ng/mL (third trimester)

The reference range for prolactin in males is 2-18 ng/mL.

Hyperprolactinemia is associated primarily with prolactin-secreting pituitary tumors (prolactinoma).

Conditions associated with prolactin deficiency include anterior pituitary dysfunction secondary to the following:

Postpartum pituitary necrosis (Sheehan syndrome)

Pituitary tumor

Extrapituitary tumor

Treatment of pituitary/extrapituitary tumor

Parasellar disease

Head injury

Infection (eg, tuberculosis, histoplasmosis)

Infiltrative disease (eg, sarcoidosis, hemochromatosis)

Specifics for collection and panels are as follows:

Specimen type: Blood serum

Container: Vacutainer, red/black top

Collection method: Venipuncture

Specimen volume: 0.6 mL

Other instructions: Collect specimen within 3-4 hours of awakening

Related tests are as follows:

Follicle-stimulating hormone (FSH)

Luteinizing hormone (LH)

Testosterone

Dehydroepiandrosterone (DHEA)

Estrogen

Progesterone

Growth hormone

Prolactin is pituitary hormone that stimulates breast development and milk production in women. Prolactin has no known normal function in men. [1, 2, 3, 4]

An image depicting prolactin can be seen below.

Indications for testing of serum prolactin include the following:

Evaluation of galactorrhea

Evaluation of headache and visual field deficits

Evaluation of pituitary tumors

Evaluation of male and female infertility

Evaluation of amenorrhea/oligomenorrhea

Evaluation of erectile dysfunction

Evaluation of hypogonadism

Monitoring therapy of prolactinoma and detecting recurrences

Hyperprolactinemia may also be associated with the following:

Anorexia nervosa

Breast stimulation (transient)

Hypothyroidism

Polycystic ovarian syndrome

Renal disease

Hyperprolactinemia may also be associated with the following drugs:

Estrogen

Tricyclic antidepressants

Opiates

Amphetamines

Reserpine

Verapamil

Methyldopa

Butyrophenones

H2 blockers

Metoclopramide

Phenothiazines

Risperidone

Segu VB. Prolactinoma. Medscape Drugs & Diseases. Available at http://emedicine.medscape.com/article/124634-overview. November 2, 2015; Accessed: December 11, 2015.

Benson CT. Prolactin Deficiency. Medscape Drugs & Diseases. Available at http://emedicine.medscape.com/article/124526-overview. June 10, 2014; Accessed: December 11, 2015.

Joustra SD, Roelfsema F, Endert E, Ballieux BE, van Trotsenburg AS, Fliers E, et al. Pituitary Hormone Secretion Profiles in IGSF1 Deficiency Syndrome. Neuroendocrinology. 2015 Aug 25. [Medline].

Porta F, Ponzone A, Spada M. Short prolactin profile for monitoring treatment in BH4 deficiency. Eur J Paediatr Neurol. 2015 May. 19 (3):360-3. [Medline].

Anas K Gremida, MD Resident Physician, Combined Internal Medicine-Pediatrics Program, St Louis University School of Medicine

Disclosure: Nothing to disclose.

Thomas M Wheeler, MD Chairman, Department of Pathology and Immunology, WL Moody, Jr, Professor of Pathology, Professor of Urology, Baylor College of Medicine

Thomas M Wheeler, MD is a member of the following medical societies: Alpha Omega Alpha, American Association for Cancer Research, American Medical Association, American Society for Clinical Pathology, American Society of Cytopathology, American Thyroid Association, American Urological Association, College of American Pathologists, United States and Canadian Academy of Pathology, International Society of Urological Pathology, Harris County Medical Society

Disclosure: Received stock from PathXL for medical advisory board. for: PathXL, Inc.

Judy Lin, MD

Disclosure: Nothing to disclose.

Prolactin 

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