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Prolactin (PRL)
Investigation Result Units Biological Reference Interval

Prolactin (PRL) 22.37 ng/mL 6 - 29.9

• Sample Type: Serum. • Method : ECLIA. • Comments : PRL is a polypeptide produced by the lactotrophs of the pituitary gland. Since prolactin is secreted in a pulsatile manner and is also influenced by a variety of physiologic stimuli, it is recommended to test 3 specimens at 20-30 minute intervals after pooling. Major circulating form of Prolactin is a nonglycosylated monomer, but several forms of Prolactin linked with immunoglobulin occur which can give falsely high Prolactin results. Macroprolactin assay is recommended if prolactin levels are elevated, but signs and symptoms of hyperprolactinemia are absent or pituitary imaging studies are normal • Clinical Use : 1.Diagnosis & management of pituitary adenomas. 2.Differential diagnosis of male & female hypogonadism increased levels. 3.Physiologic:-Sleep, stress, postprandially, pain, coitus, pregnancy, nipple stimulation or nursing. 4.Systemic disorders:-Chest wall or thoracic spinal cord lesions, Primary/Secondary hypothyroidism, Adrenal insufficiency, Chronic renal failure, Cirrhosis 5.Medications:-Psychiatric medications like Phenothiazine, Haloperidol, Risperidone, Domperidone, Fluoexetine, Amitriptylene, MAO inhibitors etc., Antihypertensives: Alphamethyldopa, Reserpine, Verapamil Opiates: Heroin, Methadone, Morphine, Apomorphine Estrogens Oral contraceptives Cimetidine / Ranitidine 6.Prolactin secreting pituitary tumors:-Prolactinoma, Acromegaly 7.Miscellaneous:-Polycystic ovarian disease, Epileptic seizures, 8.Ectopic secretion of prolactin by non-pituitary tumors, pressure / transaction of pituitary stalk, macroprolactinemia 9.Idiopathic Decreased levels:-Pituitary deficiency (Pituitary necrosis / infarction), Bromocriptine administration, Pseudohypoparathyroidism

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Ultra Thyroid Stimulating Hormone (TSH)
Investigation Result Units Biological Reference Interval

ULTRA Thyroid Stimulating Hormone (TSH) 1.88 uIU/mL 0.27 - 4.2
Frist trimester: 0.3- 4.5
Second trimester : 0.5 -4.6
Third trimester : 0.8 -5.2
• Sample Type : Serum.
• Method : ECLIA.

• Comments : - TSH levels are subject to circadian variation, reaching peak levels between 2 - 4.a.m. and at a minimum between 6-10 pm . - The variation is of the order of 50% , hence time of the day has influence on the measured serum TSH concentrations. • Clinical Use : - Diagnose Hypothyroidism and Hyperthyroidism. - Monitor T4 replacement or T4 suppressive therapy. - Quanitify TSH levels in the subnormal range. • Increased Levels : Primary hypothyroidism, Subclinical hypothyroidism, TSH dependent Hyperthyroidism Thyroid hormone resistance. • Decreased Levels : Graves disease, Autonomous thyroid hormone secretion, TSH deficiency. • References : - Henry’s Clinical Diagnosis and Management, 23rd edition. - Tietz Fundamentals of Clinical Chemistry and Molecular Diagnosis, 7th edition. •Disclaimer: 1) The above result relate only to the specimens received and tested in laboratory and should be always correlate with clinicalfindings and other laboratory markers. 2) Improper specimen collection, handling,storage and transportation may result in false negative/Positive results.

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