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Exam Review

Key Facts: EGEL Plus Ingeniería Biomédica Exam

200

Total items on the official EGEL Plus BIOMEDI (140 disciplinary + 60 transversal)

Ceneval, Guía para el sustentante EGEL Plus BIOMEDI

9 hours

Two sessions of 4.5 hours each on the same day

Ceneval, Guía para el sustentante EGEL Plus BIOMEDI

1000

Minimum Índice Ceneval for a Satisfactorio level in an area or section

Ceneval, Guía para el sustentante EGEL Plus BIOMEDI

1150

Minimum Índice Ceneval for a Sobresaliente level

Ceneval, Guía para el sustentante EGEL Plus BIOMEDI

MXN 1,885

Individual national Examen desde casa fee in 2026

Ceneval EGEL portal

Ceneval's EGEL Plus BIOMEDI is a 200-item, nine-hour Spanish exit exam: 140 disciplinary items in three areas plus 60 transversal language and communication items.

Sample EGEL Plus Ingeniería Biomédica Practice Questions

Try these sample questions to review concepts for the EGEL Plus Ingeniería Biomédica exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A clinical engineering department monitors a fleet of transport ventilators over a one-year operational cycle. The records indicate a Mean Time Between Failures (MTBF) of 760 operating hours and a Mean Time To Repair (MTTR) of 40 hours. What is the operational availability (A) of this ventilator fleet?
A.94.7%
B.95.0%
C.5.0%
D.105.3%
Explanation: Operational availability is calculated using the standard reliability formulation A = MTBF / (MTBF + MTTR). Substituting the recorded values yields A = 760 / (760 + 40) = 760 / 800 = 0.950, or 95.0%. This metric represents the proportion of operating time during which the medical equipment is functional and ready for patient delivery.
2In Mexico's National Health System, which institution provides social-security health services to formal private-sector employees and their families, financed by contributions from workers, employers and the federal government?
A.Instituto Mexicano del Seguro Social (IMSS)
B.Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE)
C.Servicios de Salud del IMSS para el Bienestar (IMSS-Bienestar)
D.Secretaría de Salud
Explanation: The IMSS is the social-security institute for formal private-sector workers and their families, financed by contributions from workers, employers and the federal government. The ISSSTE covers federal government workers, IMSS-Bienestar provides care to people without social security, and the Secretaría de Salud is the governing (rectoría) authority of the national system.
3According to international safety standard IEC 60601-1, what is the maximum allowable patient leakage current for a Type CF (cardiac floating) applied part under Normal Condition (NC) at 50/60 Hz?
A.10 µA
B.50 µA
C.100 µA
D.500 µA
Explanation: Under IEC 60601-1, Type CF applied parts are intended for direct cardiac contact (such as intracardiac ECG leads or blood pressure catheter sensors). The maximum allowable patient leakage current for Type CF under Normal Condition (NC) is 10 µA rms (and 50 µA under Single Fault Condition). This stringent threshold prevents microshock-induced ventricular fibrillation.
4In the context of clinical electrical safety, microshock hazards present a unique threat to patients with invasive cardiac catheters compared to macroshock. What physiological mechanism explains why microshock currents of only tens to hundreds of microamperes can trigger ventricular fibrillation?
A.The current travels across intact thoracic skin, producing widespread peripheral nerve depolarization
B.High skin impedance converts low current into extreme local voltage spikes according to Ohm's law
C.Capacitive displacement currents selectively resonate with the sinoatrial node's baseline action potential
D.The invasive conductor bypasses high skin resistance and focuses current directly onto a tiny myocardial surface area, creating high current density
Explanation: Microshock occurs when an electrical conductor directly contacts the myocardium or cardiac blood pool (e.g., pacemaker leads or saline-filled pressure catheters). Because intact skin resistance (typically 1 kΩ to 100 kΩ) is bypassed, the tiny current is concentrated over a contact area of only a few square millimeters, producing a local current density exceeding the threshold required to depolarize myocardial cells and initiate disorganized ventricular fibrillation.
5In a hospital operating room, an Isolated Power System (IPS / tablero de aislamiento) is installed in compliance with NOM-001-SEDE-2012 Art. 517. What is the fundamental operational function of the Line Isolation Monitor (LIM / monitor de aislamiento de línea) connected to this system?
A.To automatically trip the branch circuit breaker immediately upon detecting any ground leakage
B.To continuously measure the total hazard current to ground from either isolated line and trigger an alarm if it reaches the preset threshold without disconnecting power
C.To convert 60 Hz alternating current to smooth direct current for sensitive electrocautery generators
D.To supply battery backup power to life-support ventilators during an external utility blackout
Explanation: A line isolation monitor continuously measures the hazard current: the current that would flow to ground if either isolated conductor were faulted. Under NOM-001-SEDE-2012 (517-160), it shows a green lamp while the system is properly isolated and turns on a red lamp and an audible alarm when the total hazard current reaches about 5 mA; it must not alarm below 3.7 mA, and lower thresholds are allowed only by exception. It never interrupts power, so surgical and life-support equipment keeps running after a first fault.
6NOM-001-SEDE-2012 (Article 517) addresses patients undergoing invasive procedures with a direct conductive path to the heart. To protect them, what is the maximum potential difference the standard allows between the grounding point in the patient vicinity and the reference ground of the isolated power panel?
A.20 mV
B.100 mV
C.500 mV
D.5.0 V
Explanation: Article 517 requires the grounding point in the patient vicinity to be as close as possible to the reference ground of the isolated power panel, and it prohibits any potential difference greater than 20 mV, which could electrocute a patient with a direct path to the heart. The standard notes that such patients can be harmed by potential differences of a few millivolts and currents as low as 10 µA; with an intracardiac path resistance on the order of 1 kΩ, 20 mV corresponds to about 20 µA.
7Under NOM-240-SSA1-2012 (technovigilance), which description matches the definition of an 'incidente adverso'?
A.Any event related to the use of a medical device, including abnormal use contrary to the registration holder's recommendations
B.A failure in hospital administrative documentation that delays an annual preventive maintenance audit
C.A verified event related to the use of a medical device, with strong evidence of a causal link, that may result from a malfunction or alteration of the device's characteristics and could cause death or serious deterioration of the user's health
D.Any unexpected cosmetic defect or labeling typo detected before commercial distribution
Explanation: NOM-240-SSA1-2012 (4.1.15) defines an incidente adverso as a verified event related to the use of a medical device, with strong evidence of a causal link, that may be caused by a malfunction or alteration of the device's characteristics and could cause death or serious deterioration of the user's health. Events arising from abnormal use, or use different from that recommended by the registration holder, are not adverse incidents. An event merely related to device use, without these conditions, is an 'incidente' (4.1.14).
8Under NOM-240-SSA1-2012, within what time must the initial notification be sent to the Centro Nacional de Farmacovigilancia (CNFV) for a confirmed adverse incident involving a medical device that caused a user's death or a serious deterioration of health?
A.Within 2 working days of confirmation
B.Within 10 calendar days of confirmation
C.Within 30 calendar days of confirmation
D.In the annual technovigilance summary report
Explanation: Section 12.3 of NOM-240-SSA1-2012 sets the deadlines for initial notifications: 2 working days for a serious threat to public health, 10 calendar days for death or serious deterioration of a user's health, and 30 calendar days for other adverse incidents. Follow-up and final reports are due within six months.
9In the Fennigkoh–Smith risk-based model for including equipment in a preventive maintenance program, the equipment management number is EM = Function + Physical Risk + Maintenance Requirement. An anesthesia machine scores Function = 10 (life support), Physical Risk = 5 (possible patient death) and Maintenance Requirement = 4 (above-average maintenance). With the usual inclusion threshold of EM ≥ 12, what is its EM and program status?
A.EM = 19; it is included in the scheduled preventive maintenance program
B.EM = 12; it is placed on run-to-failure corrective maintenance
C.EM = 200; it must be decommissioned immediately
D.EM = 9; it is excluded from scheduled preventive maintenance
Explanation: EM = 10 + 5 + 4 = 19, which exceeds the inclusion threshold of 12, so the machine is enrolled in the scheduled preventive maintenance and safety inspection program. In the original model, function scores range from 2 (non-patient-related) to 10 (life support), and physical risk and maintenance requirement each range from 1 to 5.
10During risk analysis of an electrosurgical generator (as part of an ISO 14971 risk management process), a Failure Mode and Effects Analysis (FMEA) identifies an active electrode insulation breakdown. The team assigns Severity (S) = 8 (potential severe burn), Occurrence (O) = 4 (infrequent failure), and Detection (D) = 5 (moderate chance of user noticing before discharge). What is the calculated Risk Priority Number (RPN)?
A.17
B.32
C.40
D.160
Explanation: In FMEA, the Risk Priority Number is the product of severity, occurrence and detection: RPN = S × O × D = 8 × 4 × 5 = 160. The RPN is used to rank failure modes for risk control (for example, adding insulation-integrity monitoring). Acceptability criteria come from the manufacturer's risk management plan; ISO 14971 does not prescribe RPN thresholds.

About the EGEL Plus Ingeniería Biomédica Exam

Independent EGEL Plus Ingeniería Biomédica practice by OpenExamPrep. The official Ceneval examination is in Spanish and has 200 three-option items: 140 disciplinary items in Ingeniería clínica, Sistemas y dispositivos biomédicos, and Procesamiento de señales e imágenes biomédicas, and 60 transversal Lenguaje y Comunicación items. This bank is an English-language study adaptation with four-option multiple-choice questions, not an official translation or format simulation. Disciplinary stems and explanations are in English. Language and communication items keep their Spanish passages and answer options, because Spanish usage is the skill being tested, and give their instructions and explanations in English.

Exam sponsor: Centro Nacional de Evaluación para la Educación Superior (Ceneval). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

200 three-option items: 140 disciplinary items (Ingeniería clínica 40, Sistemas y dispositivos biomédicos 50, Procesamiento de señales e imágenes biomédicas 50) and 60 transversal items in Comprensión Lectora and Redacción Indirecta.

Time Limit

Two sessions of 4.5 hours each on the same day (9 hours in total)

Passing Score

Each area and each section is reported on the Índice Ceneval (700-1300): 700-999 Aún no satisfactorio, 1000-1149 Satisfactorio, 1150-1300 Sobresaliente. The global result is weighted toward the disciplinary section: Satisfactorio or better there earns at least a Testimonio de Desempeño Satisfactorio, and a Testimonio de Desempeño Sobresaliente requires Sobresaliente in the disciplinary section and at least Satisfactorio in Lenguaje y Comunicación

Exam / Certification Fees

MXN 1,885 for the 2026 national Examen desde casa; institutional administrations may charge a different amount

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

40 of 140 disciplinary items

Ingeniería clínica

Organization and regulation of Mexico's health system (11), infrastructure and safety of health facilities (13), and medical equipment management (16)

50 of 140 disciplinary items

Sistemas y dispositivos biomédicos

Basic sciences (14), medical sciences (12), biomedical engineering fundamentals (13) and biomedical prototype design (11)

50 of 140 disciplinary items

Procesamiento de señales e imágenes biomédicas

Technologies for diagnosis by signals and images (14), time-domain operations (14), spatial-domain operations (10) and frequency-domain operations (12)

60 of 200 total items

Lenguaje y Comunicación

Reading comprehension of academic, literary and public-interest texts (30 items) and indirect writing, which asks candidates to choose the version of a text that is correct, coherent and well punctuated (30 items)

Preparing for the EGEL Plus Ingeniería Biomédica Exam

What You Need to Know

  • Passing score: Each area and each section is reported on the Índice Ceneval (700-1300): 700-999 Aún no satisfactorio, 1000-1149 Satisfactorio, 1150-1300 Sobresaliente. The global result is weighted toward the disciplinary section: Satisfactorio or better there earns at least a Testimonio de Desempeño Satisfactorio, and a Testimonio de Desempeño Sobresaliente requires Sobresaliente in the disciplinary section and at least Satisfactorio in Lenguaje y Comunicación
  • Assessment: 200 three-option items: 140 disciplinary items (Ingeniería clínica 40, Sistemas y dispositivos biomédicos 50, Procesamiento de señales e imágenes biomédicas 50) and 60 transversal items in Comprensión Lectora and Redacción Indirecta.
  • Time limit: Two sessions of 4.5 hours each on the same day (9 hours in total)
  • Exam / certification fees: MXN 1,885 for the 2026 national Examen desde casa; institutional administrations may charge a different amount Official sources

Using Our Practice Resources

  • Work through all 100 available questions
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EGEL Plus Ingeniería Biomédica: Suggested Study Strategy

1Review clinical engineering metrics and regulation: availability from MTBF and MTTR, risk-based maintenance scoring, NOM-240-SSA1-2012 technovigilance deadlines, and the device classes of the Reglamento de Insumos para la Salud.
2Practice biomedical instrumentation calculations: instrumentation amplifier gain, CMRR in decibels, RC filter cutoffs, and patient leakage limits for B, BF and CF applied parts.
3Refresh physiology and basic sciences used in device design: cardiac output and ejection fraction, respiratory compliance, and fluid flow through catheters.
4Work through signal and image operations: sampling and aliasing, signal averaging, DFT resolution, median and Gaussian filtering, Hounsfield units, and Doppler shifts.
5Prepare for Lenguaje y Comunicación by reading academic articles, essays and public notices in Spanish, and by reviewing agreement, punctuation, accentuation and connectors.

Frequently Asked Questions

What is the EGEL Plus Ingeniería Biomédica?

The EGEL Plus Ingeniería Biomédica (EGEL Plus BIOMEDI) is Ceneval's national exit examination for graduates of the Licenciatura en Ingeniería Biomédica and related programs. It measures the knowledge and skills considered indispensable at the end of the degree, plus Spanish reading comprehension and indirect writing. Institutions may use the result as a graduation requirement, a titulación option or part of a course grade, under their own rules; a Testimonio does not by itself determine the award of the degree or the cédula profesional.

How many questions are on the official EGEL Plus BIOMEDI and how long is it?

The official exam has 200 items: 140 disciplinary items (Ingeniería clínica 40, Sistemas y dispositivos biomédicos 50, Procesamiento de señales e imágenes biomédicas 50) and 60 Lenguaje y Comunicación items (30 reading comprehension and 30 indirect writing). It is given on one day in two sessions of 4.5 hours each (9 hours). About 15% of the items are pilot items that do not count toward the result.

How is the EGEL Plus BIOMEDI scored?

Each area and section is reported on the Índice Ceneval from 700 to 1300: 700-999 Aún no satisfactorio, 1000-1149 Satisfactorio and 1150-1300 Sobresaliente. The global result follows a conjunctive rule weighted toward the disciplinary section: Satisfactorio or better in the disciplinary section earns at least a Testimonio de Desempeño Satisfactorio, while a Testimonio de Desempeño Sobresaliente requires Sobresaliente in the disciplinary section and at least Satisfactorio in Lenguaje y Comunicación. Candidates with a global Sobresaliente who take the exam for the first time within one year of finishing the degree are eligible for the Premio Ceneval al Desempeño de Excelencia-EGEL.

Can I use a calculator or formula sheet on the EGEL Plus BIOMEDI?

Check the permitted materials section of the official guide for your application period, and practice the formulas you need rather than relying on a formula sheet.

Why is this practice bank in English if the official exam is in Spanish?

The official Ceneval exam is in Spanish. This bank is an independent English-language study adaptation with four-option questions, not an official translation or format simulation. Disciplinary questions and explanations are in English so you can review the engineering content. Language and communication items keep their Spanish passages and options because they test Spanish usage, and their instructions and explanations are in English.

Which Mexican regulations appear in the clinical engineering area?

The official structure includes a subarea on the organization and regulation of Mexico's health system. This bank practices NOM-240-SSA1-2012 (technovigilance), Article 517 of NOM-001-SEDE-2012 (electrical installations in health facilities) and the device risk classes in the Reglamento de Insumos para la Salud.