Urine preservatives PDF

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Urine preservatives table...

Description

Name : U.K.T.D.Kariyawasam Index Number : 2018/MLS/19 Assignment – URINE PRESERVATIVES Preservative

Strength of preservative

Refrigeration

Freezing

Thymol

10 ml per 24 hour collection

Boric acid

Interferes with acid precipitation test for protein. 10g per 24 hour collection (1g boric acid / 100ml – 8% boric acid)

Formalin (formaldehyd e)

10% formalin

Analyte

Storage condition

17- ketosteroids 5-Hydroxyindolacetic acid Protein (microalbumin, α macroglobulin) Aluminium Citrate Amino levulinic Acid Amylase Creatinin Urea Uric acid Bence john protein Calcium Chloride Anthine,Hypoxanthine,Nitroge n,NTX – Telopeptide, Bilirubin,Urobilinogen Glucose,Sediments, alpha 1 - microglobulin

Around 4ċ temperature for no longer than 24 hours.

Albumin Cortisol Estrogen Aldosterone Amino acid Chloride HCG Citrate Glucose Phosphate 17- ketosteroids Protein Uric acid Zinc Sediment,cells and casts

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Preserves b urobilinoge

Refrigeration is preffered for≤7 days Frozen ok for ≤ 7 days

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Preserves g sediments w

Keeps pH at about 6.0. Refrigeration

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Preserves p formed elem Does not int routine ana than pH. Is bacteriost

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 Some drugs

Does not int chemical te Prevent bac in 24 h.

-20 0C temperature is used

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Phenol Sodium Fluoride

Advantages

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Excellent se preservative Preserve ce

Does not int routine test Prevent glyc Is a good pr for drug ana

Commercial preservative tablet

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Convenient refrigeration possible Have contro concentrati minimize in

Chloroform Toluen

30 ml per 24 hour collection

Oxalate,pH,Cystine,Citrate, amino acids, hydroxyproline

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Does not int routine test...