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WorksheetsKey Terms and Progress Tracker
Total questions: 94
Worksheet time: 47mins
Which statement best defines Clinical Laboratory Improvement Amendments (CLIA)?
A state guideline for veterinary laboratory procedures
An international treaty for hospital accreditation standards
A local policy for clinic staffing and scheduling
A federal amendment from 1988 regulating human lab testing
What is the primary purpose of clinical laboratory testing?
Provide data for diagnosis and management of conditions
Train staff on sample transport and storage
Replace physical exams in routine patient assessments
Determine hospital billing and insurance coverage
Which term refers to a substance that is being identified and measured in a test?
Analyte
Antigen
Solvent
Catalyst
20/20 vision indicates which ability?
Seeing at 20 feet what average vision sees at 20
Reading fine print at 10 feet without correction
Identifying colors accurately under dim light
Focusing on near objects better than far ones
Which description best matches cholesterol?
A water-soluble vitamin needed for vision
A mineral stored primarily in bone tissue
A protein enzyme that digests carbohydrates
A waxy fatlike substance produced by the liver
Critical values are laboratory results that require what action?
Delaying notification until shift change
Repeat testing at the next annual visit
Routine filing within the patient chart only
Immediate response due to life-threatening variance
Which term describes microscope examination of cells to identify a diagnosis?
Serology
Neurology
Histology
Cytology
Fecal occult blood testing (FOBT) is primarily used to check for what?
Bacterial growth in sputum
Hidden blood in stool samples
Electrolyte imbalance in urine
Glucose levels in plasma
Helicobacter pylori is best described as which of the following?
A hormone secreted during late puberty
A virus causing color vision deficiency
A bacterium that infects the digestive tract
A fungal pathogen found in nail beds
Hematocrit represents which measurement?
Volume percentage of red cells in blood
Average size of circulating platelets
Mass of hemoglobin per deciliter
Rate of white cell proliferation
Hematology focuses on which area?
Study of dermatologic lesions and wound care
Study of renal filtration and electrolyte balance
Study of endocrine hormones and metabolism
Study of blood-related diseases and treatment
Hemoglobin in red blood cells primarily performs which function?
Produces antibodies against viral infections
Regulates blood glucose after meals
Initiates blood clot formation at injury sites
Transports oxygen from lungs to the body
Hemoglobin A1C helps clinicians assess which parameter?
Urine ketones during acute illness
Serum lipid levels after fasting overnight
Immediate oxygen saturation during exercise
Average blood glucose over about three months
Human chorionic gonadotropin (hCG) is secreted by what structure?
Pancreas after high sugar intake
Thyroid during iodine deficiency
Placenta during pregnancy
Pituitary gland during stress
The Ishihara test is used to assess which condition?
Night blindness disorder
Color vision deficiency
Depth perception errors
Peripheral vision loss
Microbiology is the study of organisms with what characteristic?
Visible only during nighttime conditions
Existing only within human blood vessels
Capable of photosynthesis in full sunlight
Too small to be visible to the naked eye
Mononucleosis is most commonly caused by which virus?
Hepatitis C virus spread by blood
Influenza A virus spread by droplets
Human papillomavirus transmitted by contact
Epstein–Barr virus transmitted through saliva
A peak flow meter measures which quantity?
Amount of air exhaled with force
Total oxygen carried in hemoglobin
Carbon dioxide produced during rest
Air humidity within the nostrils
Pulmonary function testing assists clinicians by doing what?
Measuring fasting serum cholesterol levels
Identifying bacterial cultures from wounds
Detecting hidden blood within stool samples
Assessing lung function for disease evaluation
Which statement correctly contrasts qualitative and quantitative testing?
Qualitative measures amount precisely; quantitative judges color
Qualitative focuses on quality traits; quantitative measures amount
Qualitative is numerical; quantitative is descriptive only
Qualitative counts units per milliliter; quantitative asks yes–no
Quality assurance primarily aims to do what?
Maintain a desired level of quality for services or equipment
Label specimens to match the requisition form
Transport specimens under controlled temperature
Calibrate instruments to measure exact volumes
Quality control in the lab is best described as which action?
Filing reports without instrument calibration
Procedures to ensure reliable results by detecting error
Scheduling maintenance every fiscal quarter
Replacing staff after a failed proficiency test
Which item is required on a laboratory requisition form to authorize testing?
Insurance policy details
Specimen container barcode
Provider signature authorizing tests
Patient demographics only
Which statement best describes the MA’s role in Point of Care testing?
Transfuse blood products
Order tests and report results
Perform surgical biopsies
Interpret complex cultures
How is a positive rapid Group A streptococcus antigen test visually interpreted on the cassette?
Only control line visible
Control and test lines visible
No lines visible at all
Only test line visible
Which specimen source is collected for rapid strep testing?
Midstream clean-catch urine
Capillary finger-stick blood
Sputum from deep cough
Throat swabs from tonsillar area
Which analytes are commonly screened by a multistick urinalysis dip?
hCG and prolactin
Troponin and CK-MB
Platelets and fibrin
Ketones and nitrites
Which information typically appears in the demographic section of a requisition form?
Provider NPI and order date
Specimen label color
Diagnosis code only
Insurance billing codes
Which lab department processes and stores blood and blood products for transfusion?
Chemistry section
Blood bank unit
Cytology section
Microbiology bench
Which specimen type is used for a point-of-care hemoglobin test shown with a fingertip diagram?
Venipuncture venous sample collected in tube
Capillary whole blood from a fingerstick
Serum separated after tube centrifugation
Plasma collected with anticoagulant additive
For spun hematocrit, what is the correct simple procedure illustrated with microcapillary tubes and a centrifuge?
Collect urine and spin in hematology centrifuge
Collect capillary blood, fill microcapillary tubes, centrifuge
Collect plasma and analyze on a glucometer
Collect venous blood and incubate at 37 °C
Point-of-care blood glucose testing, as depicted with a glucometer, primarily analyzes which specimen?
Buffy coat layered after centrifugation
Serum from a spun venous sample
Whole blood applied onto test strip
Plasma separated with heparin additive
Which statement best describes what A1C indicates in the diagram section?
Presence of acute hypoglycemia symptoms
Average blood glucose control for three months
Immediate fasting glucose level today
Daily variability of postprandial glucose
The cholesterol test image with a reagent strip indicates which correct workflow?
Place capillary blood on reagent strip, analyze
Load serum into automated chemistry analyzer
Apply venous plasma to paper card
Dip urine strip and read color blocks
In the H. pylori rapid test diagrams, a positive result is indicated by which outcome?
No lines appear on the test window
Control line only without test line
Both control and test lines visible
Only the test line without control
Mononucleosis rapid screening uses which specimen as illustrated?
Fecal specimen mixed with developer
Capillary blood or venipuncture whole blood
Serum from spun microcapillary tubes
Nasopharyngeal swab eluate in buffer
Drug screening cups in the visual primarily detect substances in which specimen?
Saliva dropped onto chromatography strip
Urine collected in a labeled test cup
Serum placed on lateral flow cassette
Whole blood with anticoagulant additive
Fecal occult blood testing (FOBT) diagrams show which correct action?
Deposit capillary blood onto glucose strip
Place stool sample onto test card, add developer
Spin stool in centrifuge then measure layers
Apply urine to pad and read color change
Which regulatory body oversees CLIA testing according to the note at the bottom of the page?
Centers for Medicare and Medicaid Services
Occupational Safety and Health Administration
Centers for Disease Control and Prevention
Food and Drug Administration
Which statement best defines quality control in a clinical lab?
Policies to maintain desired level of quality
Certification for nonwaived testing sites
Guidelines for patient education steps
Actions to ensure reliable test results
What is the primary purpose of quality assurance?
Maintain a desired level of quality
Detect and eliminate testing errors
Store specimens at low temperature
Certify personnel for testing
Which urine type is typically used for screening and can be collected any time of day?
Catheterized collection
Clean-catch midstream
First morning specimen
Random urine collection
Which specimen is preferred for pregnancy testing due to concentration?
Twenty-four hour urine
Midstream clean-catch
Random urine sample
First morning urine specimen
During clean-catch midstream urine collection, what should the patient do after beginning to urinate?
Avoid urinating and wait
Finish urinating, then collect
Collect immediately at first flow
Pause, then collect midstream sample
Which instruction is correct for female clean-catch preparation?
Clean each side and middle of meatus
Clean back to front once
Clean only the middle of meatus
Avoid cleaning before collection
What is a key use of 24-hour urine collection?
Culture urinary pathogens
Assess kidney function over a day
Screen for immediate infection
Detect hidden stool blood
Which statement about fecal occult blood testing is accurate?
Lab test used to check stool for blood
Swab test used to check throat
Urine test used to check glucose
Culture used to detect parasites
When handling lab specimens, which precaution should be followed?
Skip hand hygiene if sealed
Avoid masks unless febrile
Only wear gloves for blood
Use standard precautions consistently
Which patient identifiers are commonly required on a specimen label?
Room number only
Employer and insurance
Weight and diet
Name and assigned ID
What is the best method to prevent spread of infection during specimen handling?
Transport within one hour
Consistent handwashing practice
Use of cold storage only
Double signing of labels
Why must chain-of-custody specimens be sealed?
Allow air exchange for culture
Ensure faster transport time
Reduce labeling requirements
Prevent tampering of the specimen
Which action must a medical assistant take when a critical lab value is reported?
File the report for provider later
Re-run the test without reporting
Call or email patient results promptly
Document and wait for next visit
Normal male hemoglobin reference range is closest to which value set?
12 to 16 g/dL
10 to 14 g/dL
16 to 20 g/dL
14 to 18 g/dL
Which female hematocrit range aligns with expected normal values?
25% to 33%
33% to 37%
37% to 47%
47% to 57%
Which component is part of a Complete Blood Count (CBC)?
White blood cell count
Triglyceride concentration
Fasting glucose measurement
Tympanometry reading
What is a typical fasting blood glucose range listed in the material?
110 to 140 mg/dL
90 to 130 mg/dL
70 to 100 mg/dL
50 to 70 mg/dL
Which preanalytical error is most likely to occur before specimen testing begins?
Equipment malfunction during analysis
Failure to report finalized results
Improper labeling of specimen
Uncalibrated controls during testing
During the analytic phase, which activity ensures test reliability?
Patient receives results by phone
Instruments are maintained and calibrated
Specimen is transported to the lab
Provider signs all lab reports
Which postanalytical issue is highlighted as a key responsibility for the medical assistant?
Correct sample anticoagulant ratio
Accurate data entry for reporting
Selecting proper collection container
Running quality control checks
Which situation exemplifies a sample mix-up error in the analytic phase?
Results not compared over time
Two patient samples swapped during testing
Specimen mislabeled at collection
Wrong test request entered
For adult vision screening using a Snellen chart, what distance should the patient stand from the chart?
25 feet away
20 feet away
15 feet away
10 feet away
Near vision testing primarily screens for which condition using a Jaeger eye chart?
Astigmatism severity
Color blindness types
Presbyopia in adults
Myopia in teenagers
Which test uses Ishihara plates with 11 colors to assess vision?
Jaeger near vision
Tympanometry hearing
Snellen acuity screening
Color vision deficiency test
Which hearing assessment records movement of the tympanic membrane?
Snellen chart reading
Tympanometry procedure
Speech tone recognition
Audiometry word recognition
Which instruction best prepares a patient for allergy skin testing to reduce false results?
Continue antihistamines until the test day
Stop antihistamines three days before testing
Eat a large meal right before the appointment
Begin new bronchodilator therapy the night before
During scratch (prick) testing, what outcome suggests a possible allergen reaction?
Immediate generalized flushing over entire arm
A raised wheal forming within 15 minutes
Delayed redness appearing after two hours
Localized bruising without swelling
Which statement distinguishes intradermal testing from scratch testing?
Allergen placed on intact skin surface only
Allergen injected into the dermis layer
Reaction read 48 hours after placement
Test performed exclusively on the back
In spirometry preparation, which action should the patient avoid for at least six hours before the test?
Drinking water with medications
Light stretching exercises in the morning
A small snack two hours prior
Discontinuing bronchodilators and inhalers
Which best describes FEV1 in pulmonary function testing?
Total air exhaled over full effort
Air exhaled in the first second of forced exhale
Maximum volume inhaled after a normal breath
Residual air remaining after full exhalation
For a healthy adult, the expected FEV1 and FVC values typically fall within what range of predicted values?
50% to 70% of predicted values
60% to 80% of predicted values
80% to 120% of predicted values
95% to 140% of predicted values
A patient shows an FEV1/FVC ratio markedly reduced with a curve that rises slowly and plateaus lower than normal. Which pattern is most consistent with this finding?
Normal lung function pattern
Restrictive disease pattern
Obstructive disease pattern
Mixed obstructive–restrictive pattern
Which statement about peak flow meter use is accurate for home monitoring?
Used mainly for diagnosing restrictive disease
Requires one attempt only to reduce fatigue
Measures forced expiratory volume after one second
Indicates airway status; 80% or better is well-controlled
Which agency establishes standards for standard and transmission precautions in clinical settings?
Centers for Disease Control
Food and Drug Administration
OSHA Act compliance office
Clinical Laboratory Improvement
Which definition best describes accuracy in quality control?
Frequency a test yields correct results
Ability to meet standardized benchmarks
Closeness of a measurement to true value
Repeatability of measurements to each other
In quality control, precision refers to which concept?
How close results are to true value
How close repeated measurements are
How often the test is accurate
How well results meet benchmarks
Quality assurance in the lab focuses on which overall goal?
Maximizing patient throughput rapidly
Maintaining a desired level of quality
Eliminating all random measurement error
Reducing costs regardless of outcomes
Which action is part of chemical hazard management in the lab?
Running weekly power failure drills
Posting SDS plans accessible to staff
Storing reagents near heat sources
Using tinted goggles for lasers
Which method of risk mitigation aims to identify potential risks and take action to reduce impact?
Monitor risk for changes over time
Control risk through targeted actions
Avoid risk by bypassing high‑risk situations
Accept risk with shared consequences
Point‑of‑care testing is best described as which practice?
Shipping specimens to reference facilities
Screening only by visual inspection
Processing tests in centralized labs
Running lab tests on site for rapid results
A proper throat swab collection includes which step?
Swabbing anterior tongue surface
Swabbing outside lip surfaces
Swabbing back of the throat
Swabbing only the buccal mucosa
When collecting a sputum specimen, what should the patient do first?
Brush teeth with antiseptic paste
Drink water and eat crackers
Take deep breaths then cough immediately
Rinse mouth with water to reduce contaminants
For a clean‑catch midstream urine, how many wipes are typically used during preparation?
Four separate wipes
Three consistent wipes
Two alternating wipes
One thorough wipe
Minimum urine volume generally required for routine urinalysis?
50 mL required minimum
20 mL required minimum
10 mL recommended minimum
5 mL recommended minimum
Which urine color change may suggest myoglobin presence?
Light yellow appearance
Dark amber coloration
Blue green tint
Milky white hue
Which urine odor commonly indicates abnormal findings?
No discernible odor
Neutral fresh scent
Citrus‑like smell
Ammonia‑like odor
Elevated urine specific gravity most commonly suggests which condition?
Dehydration with concentrated urine
Overhydration with dilute urine
Renal failure causing low solids
Glycosuria without water loss
Urine pH outside 4.8–8 range may be associated with which issue?
Diabetes with ketone body rise
Hypertension with proteinuria
Liver disease with bilirubin excess
Formation of kidney stones or UTI
Presence of glucose on a urine reagent strip most likely indicates which clinical state?
Liver failure progression
Severe dehydration alone
Bacterial UTI infection
Uncontrolled diabetes mellitus
Which finding can appear due to menstruation or UTI?
Bilirubin positivity
Nitrite positivity
Blood (RBC) presence
Protein positivity
Urine ketones are commonly elevated in which situation?
Bacterial UTI producing nitrites
Hemolysis with bilirubin increase
Uncontrolled diabetes or low‑carb diet
Protein‑losing nephropathy
Protein positivity on a urine dipstick may suggest which condition?
Kidney damage or infection
Iron‑deficiency anemia
Viral pharyngitis exposure
Gallbladder obstruction
Which reagent strip result suggests bacterial UTI from nitrate‑reducing organisms?
Positive nitrite reaction
Positive bilirubin reaction
Positive glucose reaction
Positive ketone reaction
An elevated leukocyte esterase result on urine dipstick most likely indicates which finding?
Presence of infection with WBCs
Severe dehydration causing crystals
Hepatic disease with bilirubin
Dietary ketosis after fasting
Which combination most strongly supports a urinary tract infection?
High specific gravity and pH 5
Bilirubin negative and protein trace
Positive nitrite and leukocytes
Positive glucose and ketones
