HOSA Clinical Lab Science Exam
Actual Questions and Answers 2026
clinical/medical lab -
correct answer ✅labs that perfrom chemical & microscopic tests
on blood, other body fluids, & tissues
Clinical Lab Improvement Amendments '88 (CLIA) -
correct answer ✅specifies mininum perfromance standards for all
clinical labs; purpose: improve & ensure quality of lab testing
How many labs provide service to humans in US? -
correct answer ✅221,000+
How many labs are POLs (physician office labs)? -
correct answer ✅50%
waived tests -
correct answer ✅simple tests & procedures that have an
insignificant risk of an erroneous result
reference labs -
correct answer ✅independent, usually private labs that do high-
volume testing & do large variety of tests
,HOSA Clinical Lab Science Exam
Actual Questions and Answers 2026
What is the central lab in the US? -
correct answer ✅CDC
clinical lab personnel -
correct answer ✅- lab director
- technical supervisor & lab manager
- general supervisor & department head
- testing personnel
hematology department -
correct answer ✅study cell components of blood
coagulation tests -
correct answer ✅used to diagnose & monitor patients with blood-
clotting (coagulation) defects
urinalysis department -
correct answer ✅do physical, chemical, and microscopic exams of
urine specimens
,HOSA Clinical Lab Science Exam
Actual Questions and Answers 2026
clinical chemistry department -
correct answer ✅do test procedures on plasma, urine, and other
body fluids; LARGEST department
immunology department -
correct answer ✅tests based on antigen-antibody methods
microbiology department -
correct answer ✅culture and identify microorganisms (includes
bacteriology, virology, mycology, and parasitology)
phlebotomists -
correct answer ✅personnel who collect blood specimens for lab
testing
point-of-care testing (POCT) -
correct answer ✅brings lab test to patient; CLIA-waived
quality assessment -
correct answer ✅comprehensive programs to evaluate, monitor, &
improve overall lab performance
, HOSA Clinical Lab Science Exam
Actual Questions and Answers 2026
proficiency testing -
correct answer ✅programs send "unknown" samples to labs at
regular intervals to asses their accuracy & relative performance
accrediation -
correct answer ✅voluntary process in which independent agency
grants recognition to institutions/programs that meet or exceed
established standards of quality
accrediting agencies -
correct answer ✅- Joint Comission (JC): asses hospitals
- College of American Pathologists (CAP): asses clinical labs
- American Association of Blood Banks (AABB): asses blood banks
- COLA: asses hospitals, POLS, & small labs
Health Insurance Portability & Accountability Act (HIPPA) -
correct answer ✅protect patient info & keeps it confidential; info
needed for patient care requires written patient consent
Medical/Clinial Lab Scientist (MLS) -
correct answer ✅- requires baccalaureate degree (4 years)
Actual Questions and Answers 2026
clinical/medical lab -
correct answer ✅labs that perfrom chemical & microscopic tests
on blood, other body fluids, & tissues
Clinical Lab Improvement Amendments '88 (CLIA) -
correct answer ✅specifies mininum perfromance standards for all
clinical labs; purpose: improve & ensure quality of lab testing
How many labs provide service to humans in US? -
correct answer ✅221,000+
How many labs are POLs (physician office labs)? -
correct answer ✅50%
waived tests -
correct answer ✅simple tests & procedures that have an
insignificant risk of an erroneous result
reference labs -
correct answer ✅independent, usually private labs that do high-
volume testing & do large variety of tests
,HOSA Clinical Lab Science Exam
Actual Questions and Answers 2026
What is the central lab in the US? -
correct answer ✅CDC
clinical lab personnel -
correct answer ✅- lab director
- technical supervisor & lab manager
- general supervisor & department head
- testing personnel
hematology department -
correct answer ✅study cell components of blood
coagulation tests -
correct answer ✅used to diagnose & monitor patients with blood-
clotting (coagulation) defects
urinalysis department -
correct answer ✅do physical, chemical, and microscopic exams of
urine specimens
,HOSA Clinical Lab Science Exam
Actual Questions and Answers 2026
clinical chemistry department -
correct answer ✅do test procedures on plasma, urine, and other
body fluids; LARGEST department
immunology department -
correct answer ✅tests based on antigen-antibody methods
microbiology department -
correct answer ✅culture and identify microorganisms (includes
bacteriology, virology, mycology, and parasitology)
phlebotomists -
correct answer ✅personnel who collect blood specimens for lab
testing
point-of-care testing (POCT) -
correct answer ✅brings lab test to patient; CLIA-waived
quality assessment -
correct answer ✅comprehensive programs to evaluate, monitor, &
improve overall lab performance
, HOSA Clinical Lab Science Exam
Actual Questions and Answers 2026
proficiency testing -
correct answer ✅programs send "unknown" samples to labs at
regular intervals to asses their accuracy & relative performance
accrediation -
correct answer ✅voluntary process in which independent agency
grants recognition to institutions/programs that meet or exceed
established standards of quality
accrediting agencies -
correct answer ✅- Joint Comission (JC): asses hospitals
- College of American Pathologists (CAP): asses clinical labs
- American Association of Blood Banks (AABB): asses blood banks
- COLA: asses hospitals, POLS, & small labs
Health Insurance Portability & Accountability Act (HIPPA) -
correct answer ✅protect patient info & keeps it confidential; info
needed for patient care requires written patient consent
Medical/Clinial Lab Scientist (MLS) -
correct answer ✅- requires baccalaureate degree (4 years)
