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Questions and Answers
What is the best time to collect urine for routine urinalysis culture and sensitivity test?
What is the recommended container for immediate urine analysis if sterile container is not available?
What should be done before collecting urine for routine urinalysis?
What should be documented when collecting a urine specimen?
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What is the recommended amount of urine needed for routine urinalysis?
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When should a urine specimen be sent to the laboratory for culture and sensitivity test?
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What is the correct procedure for collecting a 24-hour urine specimen?
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What is the principle for collecting a 24-hour urine specimen?
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What should be done if a urine collection is missed during a 24-hour urine specimen collection?
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What is the purpose of collecting a catheterized urine specimen?
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What should be avoided before conducting a creatinine clearance test?
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What test is used to confirm pernicious anemia, vitamin B12 deficiency, and intrinsic factor deficiency anemia?
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What does glucosuria in urine indicate?
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What is the purpose of collecting a stool specimen for fecalysis?
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What does melena indicate?
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What should be avoided in collecting a sterile urine specimen from a closed drainage system?
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Study Notes
Urine Collection for Tests
- Optimal urine collection time for routine urinalysis is the first morning specimen when the bladder is most concentrated.
- If a sterile container is unavailable, a clean, dry, and tightly sealed plastic bottle is recommended for immediate urine analysis.
Pre-Collection and Documentation
- Prior to urine collection, patients should be instructed to clean the genital area to minimize contamination.
- Documentation should include the date, time of collection, patient identification, and method of collection.
Urine Volume and Timing for Tests
- A minimum of 10-15 mL of urine is typically required for routine urinalysis.
- Urine specimens for culture and sensitivity tests should be sent to the laboratory as soon as possible, ideally within one hour of collection.
24-Hour Urine Specimen Collection
- To collect a 24-hour urine specimen, start with an empty bladder, then collect all urine for the next 24 hours in a designated container.
- The principle involves capturing all urine produced for 24 hours to accurately assess kidney function and substance levels.
Handling Missed Collections
- If a urine collection is missed during the 24-hour period, it should be documented, and the collection restarted from that point to ensure accurate results.
Catheterized Urine Specimens
- The purpose of collecting a catheterized urine specimen is to obtain a sterile sample, especially in patients unable to provide a clean catch sample, ensuring reduced contamination risk.
Creatinine Clearance Test Precautions
- Patients should avoid high-protein diets, excessive exercise, and dehydration prior to a creatinine clearance test to ensure accurate results.
Anemia Testing
- The Schilling test is used to confirm pernicious anemia, vitamin B12 deficiency, and intrinsic factor deficiency anemia.
Glucosuria Implications
- Presence of glucosuria in urine may indicate diabetes mellitus or other glucose metabolism disorders.
Stool Specimen Collection Purpose
- Collecting a stool specimen for fecalysis aims to diagnose gastrointestinal conditions, including infections and malabsorption.
Interpretation of Melena
- Melena indicates upper gastrointestinal bleeding, characterized by black, tarry stools.
Sterile Urine Specimen Collection Precautions
- Avoid touching the drainage system or using unsterilized containers when collecting a sterile urine specimen from a closed drainage system to prevent contamination.
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Description
Test your knowledge on urine specimen collection procedures for routine urinalysis and culture and sensitivity tests. This quiz covers the best time to collect urine, the proper collection method, and the handling of the specimen for analysis.
