Page 23 - Practical Handout bio 2 mnu 2025_Neat

Level two – Semester 4 - PharmD Biochemistry-II PB-403 (Practical course) 2024/2025

Collection and Handling of Urine Specimens

Several collection methods and containers for urine specimens are available.
Determining which ones should be used depends on the type of laboratory test

ordered.

Types of Urine Collection Methods:

❖ The most sent specimen to the laboratory for

analysis because it is the easiest to obtain and can
1. Random
be collected at any time.
Specimen
❖ This specimen is satisfactory for routine

urinalysis and microscopic analysis.

❖ Collected when the patient first wakes up in

the morning, having emptied the bladder

before going to sleep.

❖ The specimen of choice for routine urinalysis,
2. First
fasting glucose, pregnancy test, and
Morning
microscopic analysis, since the urine is generally
Specimen
more concentrated (due to the length of time the

urine is allowed to remain in the bladder) and,
therefore, contains relatively higher levels of

cellular elements and analytes.
❖ This is the preferred type of specimen for

culture and sensitivity testing because of the

3. Midstream reduced incidence of cellular and microbial

Clean Catch contamination.

Specimen ❖ Patients are required to first cleanse the urethral

area and then void the first portion of the urine

stream to reduce the opportunities for

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