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URINE COLLECTION
IN URINARY TRACT INFECTIONS
a scientific approach
Dr.T.V.Rao MD

Dr.T.V.Rao MD

1
Why Collection of Urine Makes Difference in
Optimal Diagnosis of Urinary Tract Infection
Urine being the Common specimen p...
Why Proper collection of Specimens

• Proper collection of specimens is
important to maximize the outcome
of laboratory te...
Types Of Urine Collection
• Laboratory urine
specimens are
classified by the
type of collection
conducted or by
the collec...
Urine Collection Products
• Urine Collection Containers
(cups for collection and
transport) Urine collection
container cup...
Urinary Tract Specimens
• First-voided morning urine optimal (generally

bacteria have been proliferating in bladder urine...
Specimens Types
Varies in method used and in time
frame in which to collect
specimen
Types of specimens:
 Random

 First...
Specimens Types (cont.)
Random – most common, taken anytime of day
First morning – has a greater concentration of
substa...
Urine collection process
• A sterile pre-labelled urine collection cup to the subject
and explain the following before the...
Types Of Urine Collection
• The patient should
then void the first
portion of the urine
stream into the toilet.
These firs...
Types Of Urine Collection

• Random Specimen This is the

specimen most commonly sent to the
laboratory for analysis, prim...
Major Methods in Urine Collection

Dr.T.V.Rao MD

12
Types Of Urine Collection
• First Morning Specimen This is the
specimen of choice for urinalysis and
microscopic analysis,...
Types Of Urine Collection
• Midstream Clean Catch Specimen
This is the preferred type of
specimen for culture and sensitiv...
Collecting the Urine
• There are several different methods for collection of
a urine sample. The most common is the midstr...
Male patients
• Retract
prepuce, using
plain soap or
antiseptic
clean glans.
Dry with
tissues.
Dr.T.V.Rao MD

16
Collection Urine by Male adult
Patients

Dr.T.V.Rao MD

17
Specimen Collection
• The urine collected in a
wide mouthed
container from patients
• A mid stream specimen
is the most id...
Types Of Urine Collection
• The urine midstream is
then collected into a
clean container (any
excess urine should be
voide...
Types Of Urine Collection
• (Specimens may also
be collected through an
existing Foley catheter.)
Specimens may be
collect...
Types Of Urine Collection
• Catheter Collection
Specimen This assisted
procedure is conducted
when a patient is
bedridden ...
Types Of Urine Collection
• Pediatric Specimen For infants and small
children, a special urine collection bag is
adhered t...
Urine collected with Instructions
• Spread labia, using plain soap or antiseptic wipe
front to back, dry with tissues
• Be...
Collection of Urine by Female
Patients

Dr.T.V.Rao MD

24
Dr.T.V.Rao MD

25
Steps involve Cleaning the Genital area voiding
fore stream and collecting midstream

Dr.T.V.Rao MD

26
Collecting urine in infants and
young children differs from adults
• In infants, a urinary
collection bag
(plastic bag wit...
Dr.T.V.Rao MD

28
Procedure:
• It takes a minimum of two people to perform this
procedure. However, it is better with three, one
dedicated t...
Procedure:
• The nurse then starts bladder stimulation which
consists of gentle tapping in the suprapubic area
at a rate o...
Specimen collection in infants and young
Children- A peer Reviewed Method
• Non invasive methods are safe
and ideal

• Fol...
Catheterizing the Urinary Bladder
for Collection
• Another method is the
catheterized urine specimen
in which a lubricated...
Specimen can be collected after clamping
the catheter
• If the patient already has a
urinary catheter in place, a
urine sp...
Suprapubic puncture a technically demanding
method
• On rare occasions, the
health care provider may
collect a urine sampl...
Sending the specimen to
Laboratory
• If delivery of the urine
specimen to the
laboratory within one
hour of collection is ...
Preservation and Storage
Changes that affect
the chemical or
microscopic
properties of urine
occur if urine is
kept at roo...
Preservation of Urine Specimens
• Urine collected in sterile
specimen container must
be processed within 2
hours, or refri...
Types Of Urine Collection
• Suprapubic Aspiration
Specimen This method
is used when a
bedridden patient
cannot be catheter...
Specimen Collection and Transport
Guidelines
• As with any type of
laboratory specimen,
there are certain criteria
that ne...
Specimen Collection and Transport
Guidelines
• All urine collection and/or transport
containers should be clean and free o...
Urine Specimen Handling Guidelines
• Labels Include the patient name and
identification on labels. Make sure that the
info...
Prompt transportation needed
• Transport to lab as soon
as possible
• Urine should be
cultured within 2
hours or be
refrig...
Urine Specimen Handling Guidelines
• Collection Date and Time Include collection
time and date on the specimen label. This...
Caution – Never Collect Urine from
Urine Bags for Microbiological Testing

Dr.T.V.Rao MD

44
For Topics of Interest on Infectious
Diseases Please visit me on ….

Dr.T.V.Rao MD

45
• Programme Created by Dr.T.V.Rao MD
for Medical and Health care
Professionals in the Developing World
• Email
• doctortvr...
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URINE COLLECTION IN URINARY TRACT INFECTIONS A SCIENTIFIC APPROACH

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URINE COLLECTION IN URINARY TRACT INFECTIONS a scientific approach

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URINE COLLECTION IN URINARY TRACT INFECTIONS A SCIENTIFIC APPROACH

  1. 1. URINE COLLECTION IN URINARY TRACT INFECTIONS a scientific approach Dr.T.V.Rao MD Dr.T.V.Rao MD 1
  2. 2. Why Collection of Urine Makes Difference in Optimal Diagnosis of Urinary Tract Infection Urine being the Common specimen processed in the Microbiology Laboratories, often the matters are left to inexperienced staff leading to many specimens contaminated, with normal flora leading to errors in Diagnosis, I wish the scientific approaches in collection makes a difference in optimal diagnosis and effective care of patients. The True principle in Medicine TIME lost in early diagnosis in Infectious diseases can be never gained Dr.T.V.Rao MD Dr.T.V.Rao MD 2
  3. 3. Why Proper collection of Specimens • Proper collection of specimens is important to maximize the outcome of laboratory tests for the diagnosis of infectious diseases • A variety of laboratory tests can be performed to make a presumptive or definitive diagnosis so that therapy can begin. Dr.T.V.Rao MD 3
  4. 4. Types Of Urine Collection • Laboratory urine specimens are classified by the type of collection conducted or by the collection procedure used to obtain the specimen. Dr.T.V.Rao MD 4
  5. 5. Urine Collection Products • Urine Collection Containers (cups for collection and transport) Urine collection container cups come in a variety of shapes and sizes with lids that are either snap on or screw on. To protect healthcare personnel from exposure to the specimen and protect the specimen from exposure to contaminants, leak- resistant cups should be utilized. Dr.T.V.Rao MD 5
  6. 6. Urinary Tract Specimens • First-voided morning urine optimal (generally bacteria have been proliferating in bladder urine for several hours) • Midstream urine specimens, and ideal specimen (initially voided urine contains urethral commensals) • Indwelling catheters (freshly placed, urine aspirated by needle inserted into catheter) (Foley catheter tips not acceptable) • Straight catheter specimens • Suprapubic aspirates (infants or children, recovery of anaerobes) Cystoscopic collection of urine Contamination-free specimen MD Dr.T.V.Rao 6
  7. 7. Specimens Types Varies in method used and in time frame in which to collect specimen Types of specimens:  Random  First morning  Clean catch midstream  Timed  24 hour Dr.T.V.Rao MD 7
  8. 8. Specimens Types (cont.) Random – most common, taken anytime of day First morning – has a greater concentration of substances, taken in morning Clean catch midstream – genitalia is cleaned, urine is tested for microorganisms or presence of infection Timed – specific time of day, always discard first specimen before timing 24 hour – used for quantitative and qualitative analysis of substances Dr.T.V.Rao MD 8
  9. 9. Urine collection process • A sterile pre-labelled urine collection cup to the subject and explain the following before the urine collection: • First, hands should be washed with soap and water. • The collection cup should not be opened until just before urinating. • The cap should be turned up while urinating, and then immediately recap the filled container tightly. • It is most important that the inside of the container and the cap not be touched or come into contact with any parts of the body, clothing, or external surfaces. Exposure to air should be minimized. Dr.T.V.Rao MD 9
  10. 10. Types Of Urine Collection • The patient should then void the first portion of the urine stream into the toilet. These first steps significantly reduce the opportunities for contaminants to enter into the urine stream. Dr.T.V.Rao MD 10
  11. 11. Types Of Urine Collection • Random Specimen This is the specimen most commonly sent to the laboratory for analysis, primarily because it is the easiest to obtain and is readily available. This specimen is usually submitted for urinalysis and microscopic analysis, although it is not the specimen of choice for either of these tests. Dr.T.V.Rao MD 11
  12. 12. Major Methods in Urine Collection Dr.T.V.Rao MD 12
  13. 13. Types Of Urine Collection • First Morning Specimen This is the specimen of choice for urinalysis and microscopic analysis, since the urine is generally 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 analyses such as protein, if present . Dr.T.V.Rao MD 13
  14. 14. Types Of Urine Collection • Midstream Clean Catch Specimen This is the preferred type of specimen for culture and sensitivity testing because of the reduced incidence of cellular and microbial contamination. Patients are required to first cleanse the urethral area with a castile soap towelette. Dr.T.V.Rao MD 14
  15. 15. Collecting the Urine • There are several different methods for collection of a urine sample. The most common is the midstream clean-catch technique. Hands should be washed before beginning. For females, the external genitalia (sex organs) are washed two or three times with a cleansing agent and rinsed with water. In males, the external head of the penis is similarly cleansed and rinsed. The patient is then instructed to begin to urinate, and the urine is collected midstream into a sterile container. Dr.T.V.Rao MD 15
  16. 16. Male patients • Retract prepuce, using plain soap or antiseptic clean glans. Dry with tissues. Dr.T.V.Rao MD 16
  17. 17. Collection Urine by Male adult Patients Dr.T.V.Rao MD 17
  18. 18. Specimen Collection • The urine collected in a wide mouthed container from patients • A mid stream specimen is the most ideal for processing • Female patients passes urine with a labia separated and mid stream sample is collected Dr.T.V.Rao MD 18
  19. 19. Types Of Urine Collection • The urine midstream is then collected into a clean container (any excess urine should be voided into the toilet). This method of collection can be conducted at any time of day or night. Dr.T.V.Rao MD 19
  20. 20. Types Of Urine Collection • (Specimens may also be collected through an existing Foley catheter.) Specimens may be collected directly from a Foley into an evacuated tube or transferred from a syringe into a tube or cup. Dr.T.V.Rao MD 20
  21. 21. Types Of Urine Collection • Catheter Collection Specimen This assisted procedure is conducted when a patient is bedridden or cannot urinate independently. The healthcare provider inserts a Foley catheter into the bladder through the urethra to collect the Dr.T.V.Rao MD urine specimen. 21
  22. 22. Types Of Urine Collection • Pediatric Specimen For infants and small children, a special urine collection bag is adhered to the skin surrounding the urethral area. Once the collection is completed, the urine is poured into a collection cup or transferred directly into an evacuated tube with a transfer straw. Urine collected from a diaper is not recommended for laboratory testing since contamination from the diaper material may affect test results. Dr.T.V.Rao MD 22
  23. 23. Urine collected with Instructions • Spread labia, using plain soap or antiseptic wipe front to back, dry with tissues • Begin passing urine Stop flow in midstream • Pass several ml into pen container without touching rim Stop flow before it ends • Recap container • Pass remaining urine into lavatory • Send specimen to laboratory immediately • (refrigerate if prolonged transport time) Dr.T.V.Rao MD 23
  24. 24. Collection of Urine by Female Patients Dr.T.V.Rao MD 24
  25. 25. Dr.T.V.Rao MD 25
  26. 26. Steps involve Cleaning the Genital area voiding fore stream and collecting midstream Dr.T.V.Rao MD 26
  27. 27. Collecting urine in infants and young children differs from adults • In infants, a urinary collection bag (plastic bag with an adhesive seal on one end) is attached over the labia in girls or a boy's penis to collect the specimen. Dr.T.V.Rao MD 27
  28. 28. Dr.T.V.Rao MD 28
  29. 29. Procedure: • It takes a minimum of two people to perform this procedure. However, it is better with three, one dedicated to making the catch. Encourage oral fluid intake. • 25 minutes following this feed, the baby/infants genitals are cleaned thoroughly with warm soapy water and dried with sterile gauze. • Sterile container is prepared to collect specimen. • Baby is held under the armpits (just above the bed) with legs dangling (the parents can easily assist with this). Dr.T.V.Rao MD 29
  30. 30. Procedure: • The nurse then starts bladder stimulation which consists of gentle tapping in the suprapubic area at a rate of 100 taps per minute for 30 seconds. • Next, the lumbar paravertebral zone (think the small of the lower back) is massaged in a light circular motion for 30 seconds. • Step 5 and six are repeated until urine is released. • Stand clear & catch the mid-stream. Dr.T.V.Rao MD 30
  31. 31. Specimen collection in infants and young Children- A peer Reviewed Method • Non invasive methods are safe and ideal • Follow the Broomhall et al method By tapping just above the pubis with two fingers place on suprapubic region after 1 hour of feed, tapping on at the rate of 1 tap/second for a period of 1 minute, if not successful tapping is repeated once aging. The child spontaneously pass the Urine and to be collected in a sterile container Dr.T.V.Rao MD 31
  32. 32. Catheterizing the Urinary Bladder for Collection • Another method is the catheterized urine specimen in which a lubricated catheter (thin rubber tube) is inserted through the urethra (tube-like structure in which urine is expelled from the bladder) into the bladder. This avoids contamination from the urethra or external genitalia. Dr.T.V.Rao MD 32
  33. 33. Specimen can be collected after clamping the catheter • If the patient already has a urinary catheter in place, a urine specimen may be collected by clamping the tubing below the collection port and using a sterile needle and syringe to obtain the urine sample; urine cannot be taken from the drainage bag, as it is not fresh and has had an opportunity to grow bacteria at room temperatur Dr.T.V.Rao MD 33
  34. 34. Suprapubic puncture a technically demanding method • On rare occasions, the health care provider may collect a urine sample by inserting a needle directly into the bladder (suprapubic tap) and draining the urine; this method is used only when a sample is needed quickly and technically competent staff are available Dr.T.V.Rao MD 34
  35. 35. Sending the specimen to Laboratory • If delivery of the urine specimen to the laboratory within one hour of collection is not possible, it should be refrigerated. The health care provider should be informed of any antibiotics currently or recently taken. Dr.T.V.Rao MD 35
  36. 36. Preservation and Storage Changes that affect the chemical or microscopic properties of urine occur if urine is kept at room temperature for more than 1 hour Refrigeration – most common method for storing and preserving urine It prevents bacterial growth for 24 hours. After 24 hours use chemical preservation Dr.T.V.Rao MD 36
  37. 37. Preservation of Urine Specimens • Urine collected in sterile specimen container must be processed within 2 hours, or refrigerated and processed within 24 hours • Urine collected in sterile specimen container with borate preservative should be processed within 24 hours (no refrigeration required) Dr.T.V.Rao MD 37
  38. 38. Types Of Urine Collection • Suprapubic Aspiration Specimen This method is used when a bedridden patient cannot be catheterized or a sterile specimen is required. The urine specimen is collected by needle aspiration through the abdominal wall into the bladder. Dr.T.V.Rao MD 38
  39. 39. Specimen Collection and Transport Guidelines • As with any type of laboratory specimen, there are certain criteria that need to be met for proper collection and transportation of urine specimens. This will ensure proper stability of the specimen and more accurate test results. Dr.T.V.Rao MD 39
  40. 40. Specimen Collection and Transport Guidelines • All urine collection and/or transport containers should be clean and free of particles or interfering substances. • The collection and/or transport container should have a secure lid and be leakresistant. Leak-resistant containers reduce specimen loss and healthcare worker exposure to the specimen while also protecting the specimen from contaminants. Dr.T.V.Rao MD 40
  41. 41. Urine Specimen Handling Guidelines • Labels Include the patient name and identification on labels. Make sure that the information on the container label and the requisition match. If the collection container is used for transport, the label should be placed on the container and not on the lid, since the lid can be mistakenly placed on a different container. Ensure that the labels used on the containers are adherent under refrigerated conditions. Dr.T.V.Rao MD 41
  42. 42. Prompt transportation needed • Transport to lab as soon as possible • Urine should be cultured within 2 hours or be refrigerated for up to 24 hours • Microorganisms grow very rapidly in urine at room temperature • This could give a false positive culture result Dr.T.V.Rao MD 42
  43. 43. Urine Specimen Handling Guidelines • Collection Date and Time Include collection time and date on the specimen label. This will confirm that the collection was done correctly. For timed specimens, verify start and stop times of collection. Document the time at which the specimen was received in the laboratory for verification of proper handling and transport after collection. Dr.T.V.Rao MD 43
  44. 44. Caution – Never Collect Urine from Urine Bags for Microbiological Testing Dr.T.V.Rao MD 44
  45. 45. For Topics of Interest on Infectious Diseases Please visit me on …. Dr.T.V.Rao MD 45
  46. 46. • Programme Created by Dr.T.V.Rao MD for Medical and Health care Professionals in the Developing World • Email • doctortvrao@gmail.com Dr.T.V.Rao MD 46

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