PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free Revalida Tecnología Médica UChile Practice Questions

Prepare for the Examen de Reválida de Título de Tecnólogo(a) Médico(a) — Mención Bioanálisis Clínico, Hematología y Medicina Transfusional (Universidad de Chile) exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More Chile Professional Degree Revalidation Examinations (Universidad de Chile / D.F.L. N° 153 / D.S. N° 174)

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Chile Cirujano Dentista Revalidation Examination (Universidad de Chile)

Practice Questions

Chile Enfermera(o) Revalidation Examination (Universidad de Chile)

Practice Questions

Chile Kinesiólogo(a) Revalidation Examination (Universidad de Chile)

Practice Questions

Chile Químico Farmacéutico Revalidation Examination (Universidad de Chile)

Practice Questions
2026 Statistics

Key Facts: Revalida Tecnología Médica UChile Exam

20 UTM

Total Process Fee

Facultad de Medicina UChile / D.E. N° 384 de 2026 MINEDUC

60%

Passing Standard

Reglamento de Reválida Escuela de Tecnología Médica UChile

70–80%

Curricular Equivalence Gate

Comisión de Reválida Escuela de Tecnología Médica UChile

3 Attempts

Maximum Allowed

Decreto Universitario Exento N° 0030.203 (Art. 20)

2 Years

Process Time Limit

Facultad de Medicina UChile Normativa Oficial

Theory + Practical

Exam Components

Escuela de Tecnología Médica UChile Procedimientos de Reválida

6 Core Areas

Theoretical Blueprint

Escuela de Tecnología Médica (Química, Hemato, Micro, Para, Inmuno, Transfusión)

D.S. 433 / 1993

Clinical Laboratory Rule

Reglamento de Laboratorios Clínicos MINSAL Chile

The Universidad de Chile Medical Technologist Revalidation Exam (Bioanálisis Clínico mention) is a standardized theoretical written test and laboratory practical evaluation under DU Exento 0030.203/2005 and DS 174/2024. It requires 70–80% curricular equivalence, costs 20 UTM total, requires a 60% pass mark across 6 laboratory disciplines (chemistry, hematology, microbiology, parasitology, immunohematology, transfusion), and allows 3 attempts within 2 years.

Sample Revalida Tecnología Médica UChile Practice Questions

Try these sample questions to test your Revalida Tecnología Médica UChile exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In clinical chemistry spectrophotometry, what fundamental physical law states that the absorbance (A) of a monochromatic light beam passing through a homogeneous absorbing solution is directly proportional to both the molar absorptivity (extinction coefficient), the path length of the cuvette (b), and the solute concentration (c): A = epsilon x b x c?
A.Beer-Lambert Law (Ley de Beer-Lambert)
B.Henderson-Hasselbalch Equation
C.Nernst Equation
D.Michaelis-Menten Equation
Explanation: The Beer-Lambert law (A = epsilon x b x c) forms the physical basis for quantitative clinical spectrophotometry, establishing a direct linear relationship between light absorbance and chemical analyte concentration at a specific wavelength.
2In statistical quality control (QC) in clinical laboratories, which Westgard Multi-Rule is a mandatory REJECTION rule indicating an unacceptable Random Error when one control observation exceeds either the +3s or -3s limit?
A.1_3s Rule (reject analytical run when a single control exceeds the mean +/- 3 standard deviations)
B.1_2s Rule (warning rule when one control exceeds mean +/- 2s)
C.2_2s Rule (systematic error rule when two consecutive controls exceed +2s or -2s)
D.10_x Rule (systematic error rule when 10 consecutive controls fall on one side of the mean)
Explanation: The 1_3s Westgard rule is an immediate rejection rule that detects large random analytical errors (or large systematic shifts) whenever a single QC measurement falls beyond +/-3 SD from the target mean (probability of false rejection is <0.3%).
3In a patient's fasting lipid panel: Total Cholesterol = 240 mg/dL, HDL-C = 45 mg/dL, and Triglycerides = 180 mg/dL. Using the classic Friedewald equation (LDL-C = Total Cholesterol - HDL-C - Triglycerides / 5), what is the calculated LDL cholesterol concentration, and what is the maximum triglyceride limit above which the Friedewald formula becomes mathematically invalid?
A.Calculated LDL-C = 159 mg/dL; Friedewald equation is invalid when Triglycerides > 400 mg/dL (requiring direct enzymatic or ultracentrifugation assay)
B.Calculated LDL-C = 195 mg/dL; invalid when Triglycerides > 100 mg/dL
C.Calculated LDL-C = 80 mg/dL; invalid when Triglycerides > 1,000 mg/dL
D.Calculated LDL-C = 210 mg/dL; valid at all triglyceride levels
Explanation: Friedewald calculation: LDL-C = Total Cholesterol - HDL-C - (Triglycerides / 5) = 240 - 45 - (180 / 5) = 240 - 45 - 36 = 159 mg/dL. The formula assumes a fixed VLDL-C to TG ratio of 1:5, which fails when serum triglycerides exceed 400 mg/dL (or in chylomicronemia/Type III dysbetalipoproteinemia), mandating direct homogeneous LDL-C measurement.
4What is the classical chemical reaction utilized in the automated kinetic Jaffé method for quantifying serum Creatinine, and what major non-creatinine chromogen causes positive analytical interference?
A.Reaction of creatinine with picric acid in an alkaline medium forming an orange-red Janovski chromogen complex; positively interfered with by acetoacetate, acetone, cephalosporins, glucose, and protein
B.Enzymatic oxidation of creatinine by cholesterol esterase; interfered with by bilirubin only
C.Direct precipitation of creatinine with silver nitrate; interfered with by sodium
D.Spectrophotometric detection of creatinine at 260 nm without chemical reagents
Explanation: The Jaffé reaction involves creatinine reacting with alkaline picrate (pH >12) to form an orange-red tautomer of creatinine picrate (absorbance monitored at 500–520 nm). Non-creatinine chromogens (acetoacetate in DKA, cephalosporins, pyruvate, ascorbate) also react with alkaline picrate, producing a positive bias (which kinetic rate monitoring and enzymatic methods minimize).
5In blood gas and electrolyte analysis, how is the Serum Anion Gap (AG) calculated, and what is the classic cause of a High Anion Gap Metabolic Acidosis (HAGMA)?
A.Anion Gap = [Na+] - ([Cl-] + [HCO3-]), normal reference range 8–12 mEq/L; elevated in Diabetic Ketoacidosis (DKA), Lactic Acidosis, Renal Failure (uremia), and toxic alcohol ingestion (MUDPILES / GOLDMARK)
B.Anion Gap = [K+] + [Na+], normal range 140 mEq/L; elevated in dehydration
C.Anion Gap = [Cl-] - [HCO3-], normal range 0 mEq/L; elevated in asthma
D.Anion Gap = [Albumin] x [Globulin]; elevated in multiple myeloma
Explanation: Serum Anion Gap represents unmeasured plasma anions: AG = [Na+] - ([Cl-] + [HCO3-]). Normal range is 8–12 mEq/L (or 12–16 mEq/L if K+ is included). An elevated AG indicates accumulation of unmeasured organic or inorganic acids (ketones, lactate, sulfate/phosphate in uremia, formate in methanol, oxalate in ethylene glycol).
6Which enzyme marker is the most sensitive and specific serum biomarker for evaluating acute hepatobiliary obstruction and cholestasis, and is simultaneously used to confirm whether an elevated Alkaline Phosphatase (ALP) is of hepatic origin rather than bone origin?
A.Gamma-Glutamyl Transferase (GGT / GGT)
B.Alanine Aminotransferase (ALT / SGPT)
C.Aspartate Aminotransferase (AST / SGOT)
D.Creatine Kinase (CK)
Explanation: Gamma-Glutamyl Transferase (GGT) is concentrated in the biliary canalicular epithelium. GGT is elevated in cholestasis, biliary obstruction, and chronic alcohol ingestion, but is NOT present in bone. An elevated ALP with an elevated GGT confirms hepatic origin; a normal GGT with elevated ALP indicates bone pathology (e.g., Paget's disease, osteoblastoma, rickets).
7What is the primary analytical principle of Ion-Selective Electrodes (ISE) used in automated clinical analyzers to measure serum electrolytes (Na+, K+, Cl-, ionized Ca2+)?
A.Potentiometry: measurement of the electrical potential difference across a selectively permeable membrane (e.g., glass membrane for H+/Na+, valinomycin ionophore membrane for K+) under zero current flow, described by the Nernst Equation
B.Amperometry: measurement of electrical current at a fixed applied voltage
C.Coulometry: measurement of total coulombs during electrochemical titration
D.Conductometry: measurement of bulk electrolytic conductance
Explanation: Ion-Selective Electrodes (ISE) operate on potentiometry: an ion-selective membrane (such as valinomycin embedded in PVC for K+, or a specific ion-exchange glass for Na+) generates an electrical potential difference proportional to the logarithm of the targeted ion's activity, governed by the Nernst equation.
8Which cardiac biomarker is the gold standard for laboratory confirmation of Acute Myocardial Infarction (AMI) due to near-absolute cardiac tissue specificity and high clinical sensitivity, rising within 2–4 hours of myocardial necrosis and remaining elevated for 7–14 days?
A.High-Sensitivity Cardiac Troponin I or T (hs-cTnI / hs-cTnT)
B.Total Creatine Kinase (CK)
C.Lactate Dehydrogenase (LDH)
D.Myoglobin
Explanation: High-sensitivity cardiac troponins (cTnI and cTnT) are structural proteins of the cardiac contractile apparatus with unique myocardial amino acid sequences, providing virtually 100% tissue specificity for myocardial injury, replacing older non-specific markers like CK-MB, LDH, and AST.
9What is the biochemical basis for measuring Glycated Hemoglobin (HbA1c) in the monitoring of Diabetes Mellitus, and what time period of glycemic control does it reflect?
A.Non-enzymatic irreversible post-translational glycation of the N-terminal valine residue on the beta chain of hemoglobin A (Amadori rearrangement), reflecting average plasma glucose concentrations over the preceding 8 to 12 weeks (erythrocyte lifespan)
B.Enzymatic phosphorylation of alpha chains reflecting glucose over the past 24 hours
C.Reversible binding of glucose to cell membrane spectrin over 6 months
D.Oxidation of heme iron from Fe2+ to Fe3+ over 1 year
Explanation: HbA1c forms via a slow, non-enzymatic, irreversible reaction between circulating glucose and the N-terminal amino group of valine on the hemoglobin beta chain (forming an aldimine Schiff base that rearranges into a stable Amadori ketoamine). Because erythrocytes circulate for ~120 days, HbA1c provides an objective retrospective index of glycemic control over the past 2–3 months.
10In arterial blood gas (ABG) analysis, what primary acid-base disturbance is diagnosed from the following results: pH = 7.52, PaCO2 = 48 mmHg, HCO3- = 38 mEq/L, and what is the expected compensatory mechanism?
A.Metabolic Alkalosis; compensated by hypoventilation (retaining CO2, elevating PaCO2 above 40 mmHg)
B.Respiratory Alkalosis; compensated by renal HCO3- retention
C.Uncompensated Metabolic Acidosis
D.Mixed Respiratory and Metabolic Acidosis
Explanation: pH 7.52 indicates alkalemia (>7.45); HCO3- 38 mEq/L is markedly elevated (>26 mEq/L), diagnosing primary metabolic alkalosis. The respiratory compensatory response is hypoventilation (slowing alveolar ventilation to retain carbon dioxide, raising PaCO2 to 48 mmHg to bring pH closer to 7.40).

About the Revalida Tecnología Médica UChile Exam

The Examen de Reválida de Título de Tecnólogo(a) Médico(a) is the official standardized examination administered by the Escuela de Tecnología Médica of the Facultad de Medicina at Universidad de Chile under Decreto Universitario Exento N° 0030.203 and Decreto Supremo N° 174 of 2024 MINEDUC. Under Article 112 of the Chilean Sanitary Code (Código Sanitario) and Decreto Supremo N° 433/93 (Reglamento de Laboratorios Clínicos), Tecnólogos Médicos in the mention of Bioanálisis Clínico, Hematología y Medicina Transfusional hold statutory authority over the execution, technical validation, quality assurance, and clinical interpretation of laboratory diagnostics, blood banking, and transfusion medicine. The Escuela de Tecnología Médica runs revalidation across five mentions, which are genuinely different disciplines; this practice bank is scoped only to the Bioanálisis clínico, molecular, hematología y medicina transfusional mention, whose specification is the most fully published. The faculty lists six evaluated areas for that mention — Química Clínica, Hematología, Microbiología, Parasitología, Inmunohematología and Medicina Transfusional — but publishes no percentage weighting across them, so the distribution of this bank is an editorial choice and not an official blueprint. Language and format disclosure: the real examination is administered in person in Santiago in Spanish and includes a laboratory practical examination using clinical case resolution, oral assessment and laboratory equipment. This bank is an English-language multiple-choice study adaptation designed to master the diagnostic criteria, laboratory algorithms, and quality control systems tested on the official exam.

Assessment

The revalidation process is administered semestrally by the Escuela de Tecnología Médica: Phase 1 is a written theoretical examination with 4 options per question covering the 6 official areas of the Bioanálisis mention; candidates passing with >=60% advance to Phase 2, which is a practical laboratory examination evaluating hands-on diagnostic competence.

Time Limit

Written theoretical examination session (approx. 3–4 hours) followed by scheduled laboratory practical evaluations

Passing Score

Minimum 60% correct answers (approved/failed only) on both theoretical and practical components

Exam Fee

20 UTM (2 UTM Prorrectoría + 3 UTM study + 15 UTM examination) (Universidad de Chile — Facultad de Medicina, Escuela de Tecnología Médica (under D.U. Exento N° 0030.203 of 2005, D.F.L. N° 153 of 1981, and D.S. N° 174 of 2024 MINEDUC))

Revalida Tecnología Médica UChile Exam Content Outline

Not published

Química Clínica y Diagnóstico Metabólico

Spectrophotometric principles (Beer-Lambert law, absorbance, enzymatic kinetics), renal profile (Jaffé and enzymatic creatinine assays, estimated GFR formulas CKD-EPI / MDRD, urea, uric acid), lipid profile (total cholesterol, HDL-C, direct LDL-C, Friedewald calculation limits, triglycerides), electrolytes and blood gas analysis (potentiometric ion-selective electrodes ISE, pH, PaCO2, PaO2, anion gap, base excess), liver function tests (transaminases ALT/AST, alkaline phosphatase, GGT, total and direct bilirubin), cardiac and inflammatory biomarkers (high-sensitivity troponin I/T, CK-MB, CRP, procalcitonin), and internal/external analytical quality control (Westgard multirules: 1_3s, 2_2s, R_4s, 4_1s, 10_x; Levey-Jennings charts; Total Error limits).

Not published

Hematología, Hemostasia y Citología Sanguínea

Automated hematology cell counters (impedance principle, optical flow cytometry, VCS technology, scattergrams, flag analysis), microscopic examination and morphologic identification on peripheral blood smears stained with May-Grünwald Giemsa (erythrocyte abnormalities: anisocytosis, poikilocytosis, spherocytes, schistocytes, dacryocytes, Howell-Jolly bodies), differential diagnosis of anemias (iron deficiency vs. beta-thalassemia minor / Mentzer index, megaloblastic anemias with hypersegmented neutrophils, autoimmune hemolytic anemias), acute leukemias (FAB and WHO 2022 classifications, myeloblasts with Auer rods vs. lymphoblasts, cytochemistry: myeloperoxidase MPO, Sudan Black B, non-specific esterases, basic flow cytometry immunophenotyping), myeloproliferative and myelodysplastic neoplasms, hemostasis cascade and coagulation assays (Prothrombin Time / INR, Activated Partial Thromboplastin Time aPTT, Thrombin Time, Clauss fibrinogen, mixing studies for factor deficiencies vs. lupus anticoagulant / inhibitors, D-dimer in venous thromboembolism), and automated/manual platelet evaluation.

Not published

Microbiología Clínica, Virología y Micología

Gram staining and microscopic morphology of clinical pathogens, differential and selective culture media (MacConkey, Blood Agar, Chocolate, Sabouraud, XLD, TCBS), manual and automated biochemical identification systems, Matrix-Assisted Laser Desorption/Ionization Time-of-Flight (MALDI-TOF) mass spectrometry, antimicrobial susceptibility testing (disk diffusion Kirby-Bauer, broth microdilution MIC determination according to EUCAST and CLSI guidelines), detection and characterization of bacterial resistance mechanisms (Extended-Spectrum Beta-Lactamases ESBL/BLEE, AmpC beta-lactamases, Carbapenemases: KPC, NDM, VIM, OXA-48; Methicillin-resistant Staphylococcus aureus MRSA via cefoxitin screen and mecA detection; Vancomycin-resistant Enterococci VRE via vanA/vanB), clinical virology diagnostic modalities (real-time RT-PCR, antigenic rapid tests, serological ELISA/CLIA for respiratory and viral hepatitis viruses), and medical mycology (direct KOH examination, identification of pathogenic yeasts Candida albicans / non-albicans, filamentous dermatophytes, and opportunistic molds Aspergillus).

Not published

Parasitología Clínica

Clinical diagnosis and morphological identification of intestinal protozoa (Giardia lamblia trophozoites and cysts, Entamoeba histolytica / E. dispar differential, Cryptosporidium parvum with modified Ziehl-Neelsen / Kinyoun stain, Blastocystis hominis), intestinal helminths (Ascaris lumbricoides, Trichuris trichiura, Enterobius vermicularis with Graham adhesive tape test, Taenia solium vs. Taenia saginata proglottids/scolex, Hymenolepis nana, Strongyloides stercoralis rhabditiform larvae), blood and tissue parasites (Trypanosoma cruzi / Chagas disease diagnostic algorithm: Strout micromethod in neonates, ELISA/IFI IgG in chronic stage; Plasmodium falciparum / P. vivax in thick/thin blood smears; Toxoplasma gondii serology IgG/IgM and avidity), and coproparasitological concentration techniques (Burrows PAFS method, Telemann / Ritchie formalin-ether sedimentation, Faust zinc sulfate flotation).

Not published

Inmunohematología

Genetics and biochemistry of the ABO and Rh (Rhesus) blood group systems, forward (direct / globular) and reverse (indirect / serum) ABO blood grouping, detection and characterization of Weak D (Du) and partial D phenotypes, irregular red cell antibody screening and identification panels using the Indirect Antiglobulin Test (IAT / Coombs indirecto), Direct Antiglobulin Test (DAT / Coombs directo) in the investigation of immune-mediated hemolytic anemias and Hemolytic Disease of the Fetus and Newborn (HDFN), pre-transfusion serological crossmatching (major and minor crossmatch), and systematic troubleshooting and resolution of ABO typing discrepancies (subgroups, cold autoantibodies, rouleaux formation, hypogammaglobulinemia).

Not published

Medicina Transfusional y Hemoterapia

Whole blood collection, fractionation, and manufacturing of blood components (Packed Red Blood Cells PRBCs, Platelet concentrates: random-donor and apheresis, Fresh Frozen Plasma FFP, Cryoprecipitate), preservation solutions (CPDA-1, SAGM) and storage temperature/shelf-life standards, Pathogen Reduction Technologies (PRT), mandatory serological and nucleic acid testing (NAT) screening for transfusion-transmitted infections (HIV-1/2, HBV HBsAg/anti-HBc, HCV, HTLV-I/II, Trypanosoma cruzi, Treponema pallidum / Syphilis), clinical indications for hemotherapy, and pathophysiology, diagnosis, and management of acute and delayed transfusion adverse reactions (Transfusion-Related Acute Lung Injury TRALI, Transfusion-Associated Circulatory Overload TACO, Acute Hemolytic Transfusion Reactions, Febrile Non-Hemolytic Transfusion Reactions, Allergic/Anaphylactic reactions, and Transfusion-Associated Graft-versus-Host Disease TA-GvHD).

How to Pass the Revalida Tecnología Médica UChile Exam

What You Need to Know

  • Passing score: Minimum 60% correct answers (approved/failed only) on both theoretical and practical components
  • Assessment: The revalidation process is administered semestrally by the Escuela de Tecnología Médica: Phase 1 is a written theoretical examination with 4 options per question covering the 6 official areas of the Bioanálisis mention; candidates passing with >=60% advance to Phase 2, which is a practical laboratory examination evaluating hands-on diagnostic competence.
  • Time limit: Written theoretical examination session (approx. 3–4 hours) followed by scheduled laboratory practical evaluations
  • Exam fee: 20 UTM (2 UTM Prorrectoría + 3 UTM study + 15 UTM examination)

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Revalida Tecnología Médica UChile Study Tips from Top Performers

1Master quality control evaluation using Westgard Multi-Rules (1_3s, 2_2s, R_4s, 4_1s, 10_x) and know when to reject an analytical run versus investigating systematic or random error.
2Review peripheral blood smear morphological features for anemias and acute leukemias (Auer rods in AML, lymphoblast cytochemistry, Mentzer index for microcytic anemias).
3Understand the EUCAST/CLSI interpretive criteria for phenotypic detection of ESBLs (synergy between third-gen cephalosporins and clavulanate) and carbapenemases (mCIM, EDTA synergy for metallo-beta-lactamases).
4Memorize coproparasitological diagnostic methods in Chile (Burrows PAFS, Telemann, Graham test for Enterobius) and the diagnostic algorithm for Chagas disease (Strout test in neonates, ELISA/IFI in adults).
5Thoroughly review immunohematology testing: forward/reverse ABO grouping, resolution of blood typing discrepancies, and differentiating TRALI from TACO in transfusion reactions.
6Practice multi-step laboratory calculation scenarios covering creatinine clearance, Friedewald LDL estimation, anion gap, and red blood cell indices.

Frequently Asked Questions

What is the Universidad de Chile Medical Technologist Revalidation Exam?

It is the standardized examination administered by the Escuela de Tecnología Médica of the Facultad de Medicina at Universidad de Chile under Decreto Universitario Exento N° 0030.203 of 2005 and Decreto Supremo N° 174 of 2024 to revalidate foreign degrees in medical technology/bioanalysis and confer the Chilean professional title of Tecnólogo(a) Médico(a).

Which mention is evaluated in this practice bank?

This practice bank is explicitly scoped to the mention of Bioanálisis Clínico, Hematología y Medicina Transfusional (Clinical Laboratory, Hematology, and Transfusion Medicine), which is the most common mention and has the clearest published standardized blueprint.

What is the format, structure, and passing mark?

The examination comprises a standardized written theoretical paper with four options per multiple-choice question covering six laboratory domains, followed by a practical laboratory evaluation. The passing mark is 60% (approved/failed only) on both theoretical and practical components. Candidates are allowed up to three attempts in total within two years.

What are the fees for medical technologist degree revalidation in Chile?

Under current regulations, the total fee is 20 UTM: 2 UTM for initial intake at Prorrectoría, 3 UTM for faculty curricular study of antecedentes, and 15 UTM for the theoretical and practical examinations. Upon passing, diploma issuance costs $52.000 CLP and certificate issuance costs $26.000 CLP.

Is this practice question bank in Spanish or English?

This bank is an English-language multiple-choice study adaptation designed to master the diagnostic reasoning, laboratory methodologies, quality assurance principles, and Chilean health reference standards tested on the official exam. The official Chilean examination is conducted in person in Spanish in Santiago.