Mixed Deck — All CMLA Topics Flashcards

What role does collaboration play in equipment maintenance for CMLA professionals?

Answer: It enhances outcomes through diverse perspectives and shared expertise

Collaboration leverages diverse perspectives and combined expertise to achieve better outcomes than any individual could alone.

Which analytical chemistry technique uses electrical current to separate charged molecules, commonly used for serum protein analysis?

Answer: Electrophoresis

Electrophoresis separates charged molecules (such as serum proteins) based on their size and charge using an electric field.

An automated hematology analyzer produces a flagged result for white blood cell count. What is the appropriate next step?

Answer: Prepare and review a peripheral blood smear for manual differential

Flagged hematology results require peripheral smear review to confirm or further characterize abnormalities before reporting.

Which documentation practice BEST demonstrates regulatory compliance for CMLA certified professionals?

Answer: Maintaining organized, dated, and signed records of all activities, training, and incidents

Organized, dated, and signed records demonstrate systematic compliance with regulatory requirements. Proper documentation serves as evidence during audits, protects against liability, and shows a pattern of consistent adherence to standards.

A solution with a pH of 3 is how many times more acidic than a solution with a pH of 5?

Answer: 100 times

Each pH unit represents a 10-fold difference, so a difference of 2 pH units equals 100-fold difference in hydrogen ion concentration.

How should Certified Medical Laboratory Assistant professionals handle technical procedures that have been updated or revised?

Answer: Review the updates, complete any required training, and implement the revised procedures

When procedures are updated, professionals must review the changes, complete any required training to understand the rationale and new requirements, and implement the revised procedures in their practice. Continuing outdated methods risks non-compliance and suboptimal outcomes.

A laboratory worker notices a gas odor near a Bunsen burner. The FIRST action should be to:

Answer: Turn off the gas supply and ventilate the area

Immediately shutting off the gas supply and ventilating prevents accumulation of flammable gas and eliminates ignition risk.

What action should a phlebotomist take if a patient begins to faint (syncope) during venipuncture?

Answer: Remove the needle immediately, apply pressure, and lower the patient's head or have them lie down

Immediate needle removal prevents injury, and lowering the head increases cerebral blood flow to manage vasovagal syncope.

What is the correct action if a laboratory worker's mucous membranes are splashed with a potentially infectious body fluid?

Answer: Flush with water for at least 15 minutes and report the exposure

Mucous membrane exposures require immediate flushing with water for a minimum of 15 minutes followed by prompt reporting and post-exposure evaluation.

Beta-lactamase production by bacteria causes resistance by:

Answer: Enzymatically destroying the beta-lactam ring of antibiotics

Beta-lactamases hydrolyze the beta-lactam ring that is essential for the antibiotic's activity, rendering penicillins and cephalosporins inactive before they can inhibit cell wall synthesis.

What is the function of a rotor imbalance detector in a centrifuge?

Answer: To shut down the centrifuge automatically if unequal loading causes dangerous vibration

Rotor imbalance detectors prevent mechanical damage and rotor failure by stopping the centrifuge when dangerous vibration is detected.

What is the proper action if you accidentally ingest a laboratory chemical?

Answer: Immediately seek medical help and inform them of the chemical.

Accidental ingestion of a laboratory chemical is a medical emergency that requires immediate professional medical attention. It is crucial to inform medical personnel of the specific chemical ingested, as this information is vital for them to administer the correct and most effective treatment. Delaying or attempting self-treatment can be extremely dangerous.

In a midstream clean-catch urine, how many squamous epithelial cells per low-power field indicate probable contamination?

Answer: More than 5

More than 5 squamous epithelial cells per low-power field suggests significant vaginal or skin contamination of the specimen.

Which term describes a condition of abnormal cell development?

Answer: Dysplasia

Dysplasia means abnormal development or growth, with 'dys-' meaning bad/abnormal and '-plasia' meaning formation/development.

What is the purpose of a Mueller-Hinton agar plate in microbiology?

Answer: Performing antimicrobial susceptibility testing

Mueller-Hinton agar is the standard medium used for disk diffusion (Kirby-Bauer) antimicrobial susceptibility testing per CLSI guidelines.

A urine culture grows >100,000 CFU/mL of a single organism. This finding is most consistent with:

Answer: Significant bacteriuria

A colony count of ≥100,000 CFU/mL of a single organism in a clean-catch midstream urine sample is the threshold for significant bacteriuria indicating a urinary tract infection.

What is the BEST way for a Certified Medical Laboratory Assistant professional to stay current with regulatory changes?

Answer: Actively monitor regulatory bodies, attend continuing education, and participate in professional associations

Staying current requires a multi-faceted approach: monitoring regulatory agencies directly, attending relevant continuing education programs, and participating in professional associations that disseminate regulatory updates.

The combining form 'hem/o' or 'hemat/o' refers to:

Answer: Blood

Hem/o and hemat/o both refer to blood, as seen in hematology (study of blood) and hemorrhage (bleeding).

Which type of error causes all control values to shift consistently in the same direction from the mean?

Answer: Systematic error

Systematic error (bias) shifts results consistently in one direction, often due to reagent lot changes, calibration drift, or temperature issues.

In Certified Medical Laboratory Assistant, what is the PRIMARY purpose of conducting an initial assessment?

Answer: To establish a baseline and identify needs for appropriate action

The initial assessment establishes a baseline of current conditions and identifies specific needs. This foundational information guides all subsequent decisions, planning, and interventions.