Urine Specimens Lab Report

Name : Terry-Ann Poorman
Id# : 27120454
Lab# : 1
Lab Instructor: Mrs. Bryan
Title :
Aim :
Discussion Questions:
1) What are the types of urine specimens?
Random specimen
This type of specimen is used for microscopic and chemical analysis. As the name suggest this sample can be a randomly collected specimen and at an unspecified times. This is often more convenient for the patient. A random specimen is suitable for most screening purposes. Random specimens can at times give an inaccurate view of a patient's health, this can be due to whether the specimen is too diluted and analytic values are unnatural. Being that there aren’t any precise method for how the collection of this specimen should be carried out, avoiding the introduction of contaminants

Pediatric specimens
This is a sterile specimen can be retrieved by catheterization or suprapubic aspiration. The specimen can be collected by fixing a soft, clear plastic bag with adhesive to the general area of both boys and girls.
Catheterized specimen
This specimen is collected under sterile conditions where a hollow tube is passed through the urethra into the bladder.
Midstream “clean catch” specimen
The reduced incidence of cellular and microbial contamination causes midstream urine to be the preferred specimen for culture and sensitivity testing. Patients should first cleanse the urethral area and void the first portion of urine in the toilet. This reduces the incidence of contamination of the urine specimen. This method can be carried out anytime, whether day or night.
2) List the different urine preservatives and the advantages and disadvantages of each.
• Refrigeration
 Advantages: Doesn't interfere with chemical tests

 Disadvantages: 1) raises specific gravity by hydrometer
2) Precipitates amorphous phosphates and urates.
3) Prevents bacterial growth for only 24hrs
• Saccomanno fixative
 Advantages: 1) preserves cellular