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114) Provider-performed microscopy procedures are tests performed by a health care provider using a microscope. Which one of the following statements best describes how these procedures are usually performed?

After the patient leaves the provider’s office. By physicians and nurses. For the determination of white blood cell differentials in peripheral blood smears. On specimens that require only limited sample handling or processing. With bright-field, fluorescence, or phase-contrast microscopy.

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• Analyte lability can compromise test accuracy for certain specimens.

• Because of analyte lability, federal law created the special category of provider-performed microscopy procedures.

• A physician, dentist, midlevel practitioner, or physician assistant must personally perform these tests.

• A certificate for provider-performed microscopy procedures is required. Under this certificate, the laboratory may also perform waived tests.

• Provider-performed microscopy procedures include wet mounts, all potassium hydroxide preparations, pinworm examinations, fern tests, postcoital direct qualitative examinations, vaginal or cervical mucus evaluations, nasal smears for granulocytes, fecal leukocyte examinations, and qualitative semen analyses.

Kiechle FL: Point-of-care testing for body fluids.In Kost GJ, ed. Principles and practice of point-of-care testing. Philadelphia: Lippincott; 2002, pp. 174-194.

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Clinical Pathology: General Principles, Lab Management, Clinical Chemistry, Clinical Pathology, Hematology & Coagulation

114) Provider-performed microscopy procedures are tests performed by a health care provider using a microscope. Which one of the following statements best describes how these procedures are usually performed?

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