Anonymous
Mar 20
Notes on the stages or phase of quality assurance in the laboratory with examples What are sterile and non- sterile samples with examples?
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Mar 20
Stages or phases of quality assurance in the laboratory:
1. Pre-analytical phase: This phase involves all activities that occur before the actual testing of samples. This includes sample collection, transportation, and storage. Examples of quality assurance measures in this phase include proper labeling of samples, ensuring correct sample handling procedures, and maintaining appropriate storage conditions.
2. Analytical phase: This phase involves the actual testing of samples in the laboratory. Quality assurance measures in this phase include calibration of equipment, validation of test methods, and regular quality control checks. Examples of quality assurance in this phase include running control samples alongside patient samples, performing regular maintenance on equipment, and documenting all testing procedures.
3. Post-analytical phase: This phase involves the interpretation and reporting of test results. Quality assurance measures in this phase include verifying the accuracy of results, ensuring timely reporting of results, and proper documentation of all findings. Examples of quality assurance in this phase include reviewing results for any discrepancies, following up on abnormal results, and maintaining accurate records of all test results.
Sterile and non-sterile samples:
Sterile samples are samples that are free from any living organisms, including bacteria, viruses, and fungi. These samples are typically used in microbiology testing, where the presence of contaminants could affect the results. Examples of sterile samples include sterile swabs used for collecting samples from wounds, sterile containers for collecting urine samples, and sterile tubes for collecting blood samples.
Non-sterile samples, on the other hand, may contain living organisms or contaminants. These samples are typically used in testing where the presence of contaminants is not a concern. Examples of non-sterile samples include non-sterile swabs used for collecting samples from the skin, non-sterile containers for collecting stool samples, and non-sterile tubes for collecting saliva samples.
1. Pre-analytical phase: This phase involves all activities that occur before the actual testing of samples. This includes sample collection, transportation, and storage. Examples of quality assurance measures in this phase include proper labeling of samples, ensuring correct sample handling procedures, and maintaining appropriate storage conditions.
2. Analytical phase: This phase involves the actual testing of samples in the laboratory. Quality assurance measures in this phase include calibration of equipment, validation of test methods, and regular quality control checks. Examples of quality assurance in this phase include running control samples alongside patient samples, performing regular maintenance on equipment, and documenting all testing procedures.
3. Post-analytical phase: This phase involves the interpretation and reporting of test results. Quality assurance measures in this phase include verifying the accuracy of results, ensuring timely reporting of results, and proper documentation of all findings. Examples of quality assurance in this phase include reviewing results for any discrepancies, following up on abnormal results, and maintaining accurate records of all test results.
Sterile and non-sterile samples:
Sterile samples are samples that are free from any living organisms, including bacteria, viruses, and fungi. These samples are typically used in microbiology testing, where the presence of contaminants could affect the results. Examples of sterile samples include sterile swabs used for collecting samples from wounds, sterile containers for collecting urine samples, and sterile tubes for collecting blood samples.
Non-sterile samples, on the other hand, may contain living organisms or contaminants. These samples are typically used in testing where the presence of contaminants is not a concern. Examples of non-sterile samples include non-sterile swabs used for collecting samples from the skin, non-sterile containers for collecting stool samples, and non-sterile tubes for collecting saliva samples.
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