Free ASCP MLS Exam Practice Questions Mock Test: Part 1 – (Quality Assessment/Troubleshooting )

Simulate real exam conditions with our Free ASCP MLS Exam Practice Questions Mock Test: Part 1 – (Quality Assessment/Troubleshooting ) mock test! This timed practice exam features 60 carefully curated MCQs covering the entire scope of laboratory science certifications—including ASCP MLS, AMT MLT/MT, AIMS, CSMLS, IBMS, HAAD/DOH, DHA, and MOH. Track your progress, review performance analytics, and conquer time management challenges. Detailed answer keys help you understand mistakes and boost confidence. Perfect for final readiness checks!

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Pathology Lab

ASCP MLS Exam MCQs Chapter 1

Prepare for the ASCP Medical Laboratory Scientist (MLS) Certification Exam with 60 free practice questions focused on Quality Assessment and Troubleshooting (Section I of the BOC Exam Outline). These multiple-choice questions (MCQs) cover critical topics like preanalytical errors, quality control (QC), regulatory compliance (CLIA, HIPAA), method validation, and laboratory safety protocols. Each question includes detailed rationales to reinforce key concepts and test-taking strategies.

 

1 / 60

Category: ASCP Exam Questions

Incompatible chemical storage pair:

Sodium/Potassium

Acetone/Xylene

Ammonia/Chlorine

Ethanol/Acetone

2 / 60

Category: ASCP Exam Questions

ICD-10 codes relate to:

Lab accreditation

Methodology

Test pricing

Diagnostic conditions

3 / 60

Category: ASCP Exam Questions

Blood gas analyzer failure for all parameters warrants:

Immediate recalibration

Control material repetition

Shift deferral

Electrode replacement

4 / 60

Category: ASCP Exam Questions

Chemical eye exposure first aid:

Bandage and seek help

15-minute water flush

Neutralize with pH solution

Apply antibiotic ointment

5 / 60

Category: ASCP Exam Questions

Chemical hygiene officer responsibility:

Performs exposure monitoring

Oversees safety protocols

Prohibits carcinogen use

Approves reagent orders

6 / 60

Category: ASCP Exam Questions

Recovery experiment formula:

(Spiked result – Baseline)/Added amount × 100

(Spiked result)/Added amount × 100

Added amount/(Spiked result) × 100

(Baseline – Spiked result)/Added amount × 100

7 / 60

Category: ASCP Exam Questions

Auto-verification requires all EXCEPT:

Instrument interfacing

Technologist review

Prior acceptable QC

Validated LIS rules

8 / 60

Category: ASCP Exam Questions

CMS payment eligibility requires:

State licensure

Current CLIA certificate

CAP accreditation

HIPAA compliance

9 / 60

Category: ASCP Exam Questions

Unlabeled secondary chemical containers:

Are exempt if used immediately

Require full hazard warnings

Need emergency contact numbers

Must match original labels

10 / 60

Category: ASCP Exam Questions

Test validation must include:

Reference intervals

Cost-per-test analysis

Staff satisfaction surveys

Turnaround time studies

11 / 60

Category: ASCP Exam Questions

Urine culture after prolonged refrigeration:

Acceptable if stored at 4°C

Requires chemical preservation

Must be rejected >4 hours

Needs centrifugation

12 / 60

Category: ASCP Exam Questions

Package insert usage:

Supplemental to manuals

Bench reference only

Replaces lab procedures

Requires director signature

13 / 60

Category: ASCP Exam Questions

Delta checks primarily monitor:

Reagent stability

Staff competency

Patient result consistency

Instrument precision

14 / 60

Category: ASCP Exam Questions

HIPAA violation example:

Accessing friend's results

Critical value documentation

PT sample exchange

Unannounced inspection

15 / 60

Category: ASCP Exam Questions

False Claims Act prohibits:

Unintentional billing errors

Services not rendered

Ordering provider audits

Test reflex algorithms

16 / 60

Category: ASCP Exam Questions

Acid skin decontamination after clothing removal:

Apply baking soda paste

Safety shower rinse

Use chemical wipes

Seek immediate help

17 / 60

Category: ASCP Exam Questions

Formaldehyde spill response priority:

Notify emergency services

Contain with absorbent

Evacuate area

Don PPE

18 / 60

Category: ASCP Exam Questions

Specimen rejection criteria documentation location:

QC charts

Procedure manuals

Training records

Incident reports

19 / 60

Category: ASCP Exam Questions

Vigorous shaking of blood tubes may cause:

Fibrinolysis

Clotting

Hemolysis

Lipemia

20 / 60

Category: ASCP Exam Questions

HIPAA mandates protection of:

QC validation records

Instrument maintenance logs

Electronic patient health data

Staff training certificates

21 / 60

Category: ASCP Exam Questions

Critical value communication failures are classified as:

Postanalytical errors

Preanalytical errors

Analytical errors

Phlebotomy errors

22 / 60

Category: ASCP Exam Questions

“Danger” signage indicates:

Immediate hazard

Fire equipment location

Biohazard presence

General caution

23 / 60

Category: ASCP Exam Questions

Bichromatic analysis reduces interference by:

Testing duplicate aliquots

Doubling sample incubation time

Using two wavelengths simultaneously

Diluting specimens 1:2

24 / 60

Category: ASCP Exam Questions

CLIA test complexity categorization is performed by:

FDA

CDC

Laboratory director

CAP

25 / 60

Category: ASCP Exam Questions

Postanalytical error example:

Incorrect test coding

Mislabeled collection tube

Expired calibration

Critical value call delay

26 / 60

Category: ASCP Exam Questions

Xylene waste disposal requires:

Biohazard bag disposal

EPA-licensed hauler

Open-air evaporation

Sink drainage with dilution

27 / 60

Category: ASCP Exam Questions

Biological specimen shipping regulations vary by:

DOT/IATA/USPS

OSHA/CLIA

CAP/TJC

FDA/CDC

28 / 60

Category: ASCP Exam Questions

Chemical exposure symptom response:

Self-treat with antidotes

Report to supervisor

Continue work if mild

Consult SDS independently

29 / 60

Category: ASCP Exam Questions

Delayed urinalysis beyond 1 hour risks false increases in:

Glucose

Specific gravity

Ketones

Urobilinogen

30 / 60

Category: ASCP Exam Questions

Precision verification method:

Linearity studies

Inter-laboratory sample exchange

Comparison to reference method

Replicate same-sample testing

31 / 60

Category: ASCP Exam Questions

Constant bias in method comparisons indicates:

Optimal agreement

Proportional error at all concentrations

Random measurement scatter

Unacceptable correlation

32 / 60

Category: ASCP Exam Questions

Unavailable PT material alternative:

Implement AAP

Waive testing

Repeat prior PT

Use another lab's samples

33 / 60

Category: ASCP Exam Questions

Urine culture after urinalysis requires:

Centrifugation and supernatant culture

Nitrate positivity confirmation

Refrigeration prior to plating

Immediate rejection if delayed

34 / 60

Category: ASCP Exam Questions

A Levy-Jennings QC point beyond ±2SD should first be:

Averaged with previous data

Excluded as outlier

Corrected via recalibration

Repeated with fresh control material

35 / 60

Category: ASCP Exam Questions

Which pre-collection factor impacts specimen validity?

Reagent storage temperature

Analytical instrument calibration

Post-test data archiving

Patient identification protocol

36 / 60

Category: ASCP Exam Questions

First response to QC failure is:

Halt test reporting

Adjust control limits

Repeat patient testing

Review PT performance

37 / 60

Category: ASCP Exam Questions

Procedure manuals must include:

Budget allocation details

Employee shift rotations

Reagent storage locations

Test interpretation criteria

38 / 60

Category: ASCP Exam Questions

Clean-catch urine processing priority:

Perform urinalysis first

Culture immediately

Refrigerate both aliquots

Centrifuge for supernatant

39 / 60

Category: ASCP Exam Questions

Urine culture acceptability after 7-hour storage requires:

Refrigeration at 4-7°C

Freezing at -20°C

Room temperature placement

Preservative additives

40 / 60

Category: ASCP Exam Questions

Refrigerator temperature documentation frequency:

Quarterly

Monthly

Daily

Weekly

41 / 60

Category: ASCP Exam Questions

Delta check application:

Staff competency

Reagent lot validation

Temperature monitoring

Patient result trending

42 / 60

Category: ASCP Exam Questions

Employer-covered medical evaluations occur:

During employee vacation

On work time without pay loss

After 3 incident reports

Via personal insurance

43 / 60

Category: ASCP Exam Questions

Fire prevention mandates:

Single-exit labs for flammables

Pre-operation hazard checks

Unobstructed corridors

Monthly announced drills

44 / 60

Category: ASCP Exam Questions

Proficiency testing (PT) samples must not be:

Tested during routine workflow

Processed by senior technologists

Shared between CLIA-certified labs

Repeated if out of range

45 / 60

Category: ASCP Exam Questions

IQCP (Individualized QC Plan) core components exclude:

Performance monitoring

Reagent lot validation

QC strategy design

Risk assessment

46 / 60

Category: ASCP Exam Questions

QNS (Quantity Not Sufficient) specimens represent:

Analytical error

Reporting error

Preanalytical error

Postanalytical error

47 / 60

Category: ASCP Exam Questions

OSHA’s Chemical Hygiene Plan requires:

Semi-annual formaldehyde monitoring

Designated chemical safety officer

Prohibition of carcinogens

Monthly fume hood checks

48 / 60

Category: ASCP Exam Questions

Hemoglobin delta check: Monday=11.3 g/dL, Tuesday=11.8 g/dL (SD±0.2 g/dL). Interpretation:

Poor precision

Lab error likely

Clinically insignificant

Requires repeat

49 / 60

Category: ASCP Exam Questions

Specimen stability studies must assess:

Staff shift schedules

Centrifugation timing variables

Reagent expiration dates

Instrument throughput rates

50 / 60

Category: ASCP Exam Questions

Microassay benefits include:

Smaller specimen volumes

Longer reagent stability

Enhanced diagnostic specificity

Fewer repeat analyses

51 / 60

Category: ASCP Exam Questions

LIS validation frequency for calculations:

Annually

Post-installation only

Every 6 months

Biennially

52 / 60

Category: ASCP Exam Questions

Prohibited PT practice:

Using alternate instruments

Sharing results pre-submission

Testing alongside patient samples

Submitting ungraded challenges

53 / 60

Category: ASCP Exam Questions

Electrical fire response after alarm activation:

Evacuate facility

Close compartment doors

Disconnect power mains

Extinguish with water

54 / 60

Category: ASCP Exam Questions

ASR (Analyte-Specific Reagent) reporting requires:

FDA clearance statement

Manufacturer performance data

Lab-developed test disclaimer

Medicare reimbursement codes

55 / 60

Category: ASCP Exam Questions

Primary POCT advantage is:

Faster result availability

Reduced training requirements

Higher analytical sensitivity

Lower reagent costs

56 / 60

Category: ASCP Exam Questions

±2SD control limits represent what probability range?

99% of values

75% of values

95% of values

50% of values

57 / 60

Category: ASCP Exam Questions

Reference interval determination excludes:

Fixed limits for all analytes

Age/sex stratification

Biological variability assessment

120+ reference subjects

58 / 60

Category: ASCP Exam Questions

POCT regulatory status:

Exempt from CLIA

Has reduced oversight

Follows central lab rules

Requires pathologist review

59 / 60

Category: ASCP Exam Questions

Instrument calibration verification requires:

Using expired control materials

Comparing two independent methodologies

Testing patient samples across reportable ranges

Single-point pre-use checks

60 / 60

Category: ASCP Exam Questions

Chemical exposure retesting is triggered by:

New employee training

Quarterly inspections

Procedure/equipment changes

Annual facility audits

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Top 8 Medical Laboratory Scientist (MLS) Exams:

Top 8 Medical Laboratory Scientist (MLS) Exams that are recognized globally and can help professionals validate their credentials and enhance their career opportunities:

1. ASCP – American Society for Clinical Pathology (USA)

• Exam Name: MLS(ASCP)
• Eligibility: Bachelor’s degree with clinical laboratory experience.
• Global Recognition: High
• Purpose: Certifies Medical Laboratory Scientists in the United States and internationally.

2. AMT – American Medical Technologists (USA)

• Exam Name: MLT(AMT) or MT(AMT)
• Eligibility: Academic and/or work experience in medical laboratory technology.
• Global Recognition: Moderate
• Purpose: Credentialing for medical technologists and technicians.

3. AIMS – Australian Institute of Medical and Clinical Scientists

• Exam Name: AIMS Certification Exam
• Eligibility: Assessment of qualifications and work experience.
• Recognition: Required for practice in Australia.
• Purpose: Certification and registration in Australia.

4. CSMLS – Canadian Society for Medical Laboratory Science

• Exam Name: CSMLS General or Subject-specific Exams
• Eligibility: Graduation from a CSMLS-accredited program or equivalent.
• Recognition: Canada
• Purpose: Entry-to-practice certification in Canada.

5. IBMS – Institute of Biomedical Science (UK)

• Exam Name: Registration and Specialist Portfolio Assessment
• Eligibility: Accredited degree and lab experience.
• Recognition: UK and some Commonwealth countries.
• Purpose: Biomedical Scientist registration with the HCPC (UK).

6. HAAD / DOH – Department of Health, Abu Dhabi (UAE)

• Exam Name: DOH/HAAD License Exam
• Eligibility: Degree in medical laboratory science and experience.
• Recognition: UAE (Abu Dhabi)
• Purpose: Licensure for medical laboratory practice in Abu Dhabi.

7. DHA – Dubai Health Authority (UAE)

• Exam Name: DHA License Exam for Medical Laboratory Technologists
• Eligibility: Relevant degree and experience.
• Recognition: Dubai, UAE
• Purpose: Professional license for clinical laboratory practice in Dubai.

8. MOH – Ministry of Health (Gulf Countries like UAE, Saudi Arabia, Kuwait)

• Exam Name: MOH License Exam
• Eligibility: BSc/Diploma in Medical Laboratory + experience.
• Recognition: Varies by country.
• Purpose: Required for practicing in public and private sector labs.

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