Office Laboratory Medicine

American Family Physician. 2001;63(1):165-168.

This document has been endorsed by the American Academy of Family Physicians and was developed in cooperation with the Association of Departments of Family Medicine, the Association of Family Practice Residency Directors and the Society of Teachers of Family Medicine.

Laboratory testing in the physician's office improves efficiency and quality of patient care because test results can be available at the time the patient is seen. Laboratory technology has produced systems that are reliable, simple to use and inexpensive.

Residents should obtain the knowledge and skills required to maintain a high-quality laboratory for their patients. In addition, residents should be able to qualify to direct a laboratory in compliance with federal and state regulations.

An understanding of federal regulations such as Clinical Laboratory Improvement Amendment (CLIA-88), the role of the laboratory director and the elements of quality assurance and quality control are essential. In addition, residents should learn about the requirements of the physical plant, equipment, laboratory needs, written policies and procedures, including an understanding of the role of the Commission on Office Laboratory Accreditation (COLA), Joint Commission on Accreditation of Healthcare Organizations (JCAHO) and Occupational Safety and Health Administration (OSHA) safety requirements.

Residents should also be able to evaluate the feasibility of performing tests, considering laboratory space, office staff and financial implications. Test volumes, equipment and reagent costs, technician time, cost of quality control, testing liability and charge to the patient should also be considered.

Knowledge

  1. CLIA-88

Categories of testing complexity

Certification requirements and application process

Types of certification

Application process

Application and inspection fees

Requested information

Name of tests

Methodology

Volume of tests h. Qualification of personnel

Laboratory agreements

Inspection

Record availability

Proficiency testing requirement

Notification of changes

Federal and state inspections

Fees

Entrance interview

Assessment of facilities

Selection of representative samples

Criteria used

An expanded sample

Legal implications for noncompliance with CLIA standards

Accreditation options

COLA

JCAHO

College of American Pathologists

  1. Testing systems and equipment

Selecting a reference laboratory: service, quality, price

Instrument maintenance/function:

Calibration

Instrument documentation

Log of equipment

Instrument troubleshooting

CLIA requirements for maintenance performance

Selecting qualitative test kits

Factors to consider in test kit instrument selection

Ease of performance/CLIA test complexity

Cost per billable test

Space for testing and storage

Accuracy, sensitivity and specificity

CLIA requirement for initiating a new test

Precaution before using test kits

Evaluation of sample kits: group A beta streptococcus kits, Chlamydia, urine, chorionic gonadotropin

Starting a new test

Method selection

Method verification

Traditional laboratory terms

Sensitivity

Specificity

Precision

Accuracy

Bias

Specimen collection and integrity

Specimen collection

Blood

Microbiology

Urine

Specimen processing

Specimen storage

Problems related to specimens

Improper labeling

Insufficient quantity

Improper collection

Deterioration

Specimen tracking

CLIA assessment of specimen integrity

Collection

Assessment of skills of testing and surveying personnel

Assessment of equipment and supplies

  1. Laboratory personnel

Laboratory director

Qualifications of laboratory director

Responsibilities

Overall operation and administration

Job descriptions

Choosing competent personnel

Supervisor

Testing supervision

Evaluation of personnel performance

Need for continuing education

Maintaining personnel file

Minimum personnel requirements

Testing personnel and requirements for certification

Medical technologists, bachelor of science degree, experience

Medical laboratory technician, two years of college, experience

Medical assistant, high school, experience and/or training

Typical tasks of personnel

Average salaries of medical technologists and medical laboratory technicians

Regional salaries

National salaries

Consultants

  1. Quality assurance and quality control program

Components

Procedure manual

Policies and standards

Specimen collection and handling

Specimen tracking

Calibration

Quality control

Qualitative testing (i.e., pregnancy test)

Semiquantitative testing (i.e., urine dipstick)

Quantitative testing (i.e., creatinine)

Record keeping

Proficiency testing and results

Safety requirements

OSHA

Blood-borne pathogens

Hazardous materials

Inspections

Problem log

Proficiency testing

Definition and terminology

Enrollment

Selecting a proficiency testing program

Processing and handling patient samples

Interpretation of results

Acceptable performance

Unacceptable performance

Documentation

Maintenance of records

Review by director

  1. Written policies and procedures

Procedure manual

Standard format

Name of test

Specimen collecting, handling and rejection

Materials

Procedures (step-by-step)

Interpretation

Quality control

Calibration procedure

Limitations of procedure, interfering substances

Reference range, panic values

References

Signed and dated by director, then reviewed annually

Ways to resolve problems in testing process

Documentation

Record retention

  1. Physical plant and laboratory safety management

Laboratory design

Space requirements

Administrator

Equipment fee

Electric design

Lighting

Plumbing

Fire safety

Waste storage

Blood-borne pathogen regulations

Exposure

Universal precautions

Hepatitis B vaccination

Postexposure evaluation and follow-up

Communication of hazards to employees

Warning signs

Occupational exposure to hazardous chemicals in the laboratory

Permissible exposure limits (PEL)

Exposure and monitoring

Hazard identification

Skills

  1. Use and care of the microscope
  2. Urinalysis

Chemical reactions

Microscopic

Crystals

Red blood cells

White blood cells

Epithelial casts

Quality control

Specific gravity, pH

  1. Complete blood count

Manual white blood cell count/red blood cell count

Hemoglobin

Peripheral smear

Manual differentiation

Morphology

Platelet estimate

Automated procedures not requiring operator interaction

Spun microhematocrit

  1. Chlamydia testing
  2. Gram stain test

Staining procedure

Gram-negative

Gram-positive

Morphology

Cocci vs. rods vs. coccobacilli

Diplococci, tetrads, etc.

  1. Vaginal smears

Potassium hydroxide and wet mount

Clue cells

Yeast

Trichomonas vaginalis

White blood cells and bacteria

  1. Pinworm preparation
  2. Skin scrapings

Yeast

Fungal elements

Mites

  1. Immunochemical assays

Rapid streptococcus test

Methodology

Procedure

Quality control

Mononucleosis test

Urine/serum pregnancy test

Other

Influenza tests

Chlamydia

  1. Sedimentation rate
  2. Fecal occult blood
  3. Cultures

Gonorrhea screens

Plating

Incubator protocol

Interpretation

Throat

Urine

Colony counts

Susceptibility testing

  1. Chemistry analyzer tests

Methodology

Procedure

Quality control

Calibration

Maintenance

Implementation

The minimal educational experience required by CLIA is 20 hours of didactic and laboratory workshops. It is suggested that the experience be divided into approximately 15 hours of didactic training and at least five hours of laboratory skills. The 15 hours of didactic time could meet the CLIA certification for laboratory director if the following times are allocated:

  • Regulations: 1 hour
  • Physical plant: 1 hour
  • Testing systems and equipment: 3 hours
  • Quality assurance: 3 hours
  • Quality control: 3 hours
  • Laboratory personnel: 2 hours
  • Written policies, procedures and individual performance responsibilities: 2 hours

The guidelines can be accomplished on a longitudinal basis or through an in-depth, intense experience utilizing family practice and laboratory educators.

  1. 1.Stepp CA, Woods MA. Laboratory procedures for medical office personnel. Philadelphia: Saunders, 1998.
  2. 2.Davis BG, Mass D, Bishop ML. Principles of clinical laboratory utilization and consultation. Philadelphia: Saunders, 1999.
  3. 3.Jacobs DS. Laboratory test handbook. Hudson: Lexi-Comp, 1996.
  4. 4.COLA. A voluntary education and accreditation program for physicians' office laboratories. 9881 Broken Land Parkway, Columbia, MD 21046. E-mail: info@COLA.org; Web site: http://www.cola.org/.
  5. 5.Centers for Disease Control and Prevention. Regulations for implementing Clinical Laboratory Improvement Amendments of 1988: a summary. JAMA. 1992;267:1725-7.
  6. 6.AAFP-PT site for POLs, retrieved September, 2000 from: https://www.aafp.org/pt/.
  7. 7.CLIA-related publications from the Federal Register and Code of Federal Regulations, retrieved September, 2000 from: http://www.phppo.cdc.gov/dls/clia/chronol.asp.
  8. 8.Bloodborne pathogens regulations, retrieved September, 2000 from: http://www.osha-slc.gov/SLTC/bloodbornepathogens/index.html.
  9. 9.HCFA's page on the CLIA program, retrieved September, 2000 from: http://www.hcfa.gov/medicaid/clia/cliahome.htm.
  10. 10.Online CME for the POL, retrieved September, 2000 from: http://www.vh.org/Providers/CME/CLIA/CLIAHP.html.

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