Urine collection

Urine collection - infants refers to the method of getting a urine sample from a baby for testing purposes. It is usually done in a doctor's office, but can be done at home.
How the test is performed ...


Once the urine collection has been completed, the urine containers will be taken to the lab. If you are doing the urine collection at home, you will be given instructions on how and where to transport the specimen.

Alternate Names : Urine collection - clean catch, Clean catch urine specimen
Definition
A clean catch is a method of collecting a urine sample for various tests, including urinalysis, cytology, and urine culture.

Urine collection bag -- A special plastic bag is placed over the child's penis or vaginal area to catch the urine; this is not the best method because the sample may become contaminated.

Urine Collection Device; User-centered Design [information System]; Usual Childhood Diseases
UCHD
Usual Childhood Diseases ...

urine collection bag: A plastic bag is taped over your child’s genitals to collect the urine, though contact with the skin can contaminate the sample.

Urine collection: If a sexually transmitted disease (STD) is suspected, a urethral swab for STD testing is obtained prior to voiding. Urine collection is then by clean-catch or catheterization.

24-Hour Urine Collection
Topic Index
Anatomy of the Kidneys and Urinary System ...

A 24 hour urine collection that has more than 5 grams of protein
Symptoms such as severe headache, changes in vision, reduced urine output, abdominal pain, fluid in the lungs and pelvic pain ...

A 24-hour urine collection test will accurately measure how much urine the kidneys are producing in a day. A urinalysis can determine if protein or red blood cells are leaking into the urine indicating abnormal kidney function.

a 24-hour urine collection for adrenaline and noradrenaline.
blood tests for: ...

Clean catch urine collection
Venipuncture (blood draw)
How to prepare for the test
Your doctor will tell you to take ammonium chloride capsules by mouth for 3 days prior to the test.

midstream urine collection (MID-streem) (YOOR-in) (kuh-LEK-shuhn):
a method used to obtain a clean catch urine specimen. The patient starts a stream of urine into the toilet, and then catches the urine in a sample cup as the stream continues.

METHODS OF URINE COLLECTION
Random collection taken at any time of day with no precautions regarding contamination. The sample may be dilute, isotonic, or hypertonic and may contain white cells, bacteria, and squamous epithelium as contaminants.

To empty the urine collection bag
You will need to empty the bag regularly, whenever it is half full, and at bedtime. If your doctor has instructed you to measure the amount of urine, do so before you empty the urine into the toilet.

24-hour urine collection to check protein and Creatinine clearance (kidney function)
Blood tests -- kidney function (BUN, Creatinine), Electrolytes, tests for specific disease states (e.g., ANA for lupus, anti-GBM for Goodpasture's disease, ANCA level for Wegener's disease) ...

Sometimes a 24-hour urine collection is needed for more accurate results. In this process, a person collects all the urine he or she voids during a 24-hour period. In general, this schedule is followed:
Day 1: The patient urinates upon arising as usual and discards that urine.

For a 24-hour urine collection, normal results are 90 mL/min–139 mL/min for adult males younger than 40, and 80–125 mL/min for adult females younger than 40. For people over 40, values decrease by 6.5 mL/min for each decade of life.
Urine osmolality.

Cystoscopy is a diagnostic procedure performed for diagnosis of a number of abnormalities of the urinary tract including blood of unknown origin in the urine (hematuria), urinary incontinence, abnormal urine collection in the bladder (urinary retention), ...

24-Hour Urine Collection
Twenty-four hour urine collection is performed by collecting a person's urine in a special container over a 24-hour period. The results of a 24- hour urine collection may provide information to help your physician make or confirm a diagnosis.

The three-glass urine collection method is used to measure the presence of white blood cells and bacteria in the urine and prostatic fluid.

Urine test-a 24-hour urine collection to measure calcium excretion and kidney function (very important test)
Abdominal x-ray -a test that uses radiation to take a picture of the structures inside the body; can show kidney stones caused by high calcium levels ...

Also, a 24-hr urine collection for calcium may be done to help diagnose this condition. Microscopic examination of the urinary sediment will help diagnose renal disease, as will renal biopsies.

Open a urine collection bag (a plastic bag with an adhesive paper on one end), and place it on the infant. For boys, the entire penis can be placed in the bag and the adhesive attached to the skin. For girls, the bag is placed over the labia. Diaper as usual over the secured bag.

Ask for the instructions for using and caring for the catheter and the urine collection bag. It's best to learn about this before your surgery, when you are most alert and able to understand and remember the directions.

Twenty-four hour urine collections are made before dexamethasone is administered and on each day of the test. Since cortisol and other glucocorticoids signal the pituitary to lower secretion of ACTH, the normal response after taking dexamethasone is a drop in blood and urine cortisol levels.

The most widely used test is measurement of the total amount of cortisol contained in a whole day's urine collection. Medically, this is known as the 24-hour urinary free cortisol test.

A more sensitive test, which can detect microalbuminuria, requires urine collection over 24 hours. You will also have to provide a blood sample for creatinine and urea nitrogen testing (see kidney disease and renal failure).

For practical reasons, the blood test estimation method for GFR is used far more often than the 24-hour urine collection test for creatinine clearance.
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WebMD Medical Reference ...

3. Urine specimen
Collect 10-40 ml of urine in a STERILE 50 ml centrifuge tube or a urine specimen container. First-morning voided specimens are ideal, but any urine collection is adequate. Have patient void directly into container, collecting from the first part of the urine stream if possible.

An increase in urine albumin (if the increase is relatively low it is called microalbuminuria) is often the first sign of damage to the kidney. This test is best done in a single urine collection where the albumin/creatinine ratio is measured.

Diversion of urine involving placement of a tube within the kidneys in order to provide urinary drainage directly to an external urine collection appliance.
Nephrotoxic
Toxic to kidney cells ...

A 24-hour urine collection should be done to measure the amount of protein in the urine, which indicates the extent of kidney damage done by the IgM protein. Serum viscosity should also be measured to detect early hyperviscosity syndrome.

Repeat blood pressure measurements
A battery of blood and urine tests
Electrocardiogram (EKG, ECG)'a test that records the heart' s activity by measuring electrical currents through the heart muscle
A 24-hour urine collection
Specific tests of your kidneys include: ...

Most people with Wilson disease will have a lower than normal level of copper in the blood and a lower level of corresponding ceruloplasmin. A 24-hour urine collection will show increased copper in the urine in most patients who display symptoms.

antibiotics may also be used in men whose chronic prostate problems increase the risk for bladder infections, and in pregnant women with bacteria in their urine, with or without symptoms. Nosocomial bladder infections related to catheters can be prevented by using a sterile closed urine collection ...


A-Z: Urine collection

See also: See also: Kidney, Cancer, Urinary tract, Surgery, Values





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