Point-of-care testing devices and procedures such as glucose meters and rapid tests used alongside venipuncture.
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- What does POCT stand for?
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Point-of-care testing- What is the main principle behind electrochemical glucose meters?
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Detection of electrical current produced when glucose reacts with the enzyme on the test strip- Why must control solutions be used with POC devices?
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To verify meter accuracy and detect operator or instrument errors- What must always be checked on test strips before use?
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Expiration date- What does a positive quality control result indicate?
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The meter is functioning properly and producing accurate results- What timeframe does hemoglobin A1C reflect for glucose control?
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Average blood glucose over the past 2-3 months- What specimen type is used for point-of-care cholesterol testing?
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Capillary blood from a fingerstick- What does an INR device measure?
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International Normalized Ratio to monitor anticoagulation therapy- What specimen type is required for point-of-care blood gas analysis?
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Arterial blood- What does a hemoglobin POC meter measure?
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Hemoglobin concentration in whole blood- What is the normal reference range for hematocrit in adult males?
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41-53 percent- What is the normal reference range for fasting plasma glucose?
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70-100 mg/dL- When must a critical value from POC testing be reported?
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Immediately to the ordering physician- What is a delta check used to detect in laboratory testing?
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Significant or unusual changes in a patient's result compared to their previous result- Which specimen is the standard for point-of-care glucose testing?
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Capillary blood obtained by fingerstick
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