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Key Facts: EHPLE Anesthesia Exam

200 MCQs

Total questions on official national licensure examination

MoH HHrIPR-LEO Blueprint

Two blocks of 100

Total exam duration in a morning and an afternoon block of 100 questions each

MoH Implementation Guideline (blocks of <=120 questions, >=30-minute break)

Not published

Official examination candidate registration fee

MoH registration portal (hple.moh.gov.et)

Modified Angoff

Criterion-referenced standard-setting methodology

HHrIPR-LEO Examination Policy

5 Domains

Core competency blueprint assessment areas

National BSc Anesthesia Curriculum

The EHPLE Anesthesia examination is the mandatory national licensing exam administered by the Ministry of Health's HHrIPR-LEO for BSc Anesthesia graduates, delivered as 200 four-option MCQs in a morning and an afternoon block of 100 questions each. The official blueprint weights Patient Care at 78% (general surgery anesthesia 18%, obstetric anesthesia 14%, trauma and orthopedic anesthesia 10%, pediatric anesthesia 8%, neurosurgery and EENT anesthesia 6% each, emergency and critical care 6%, geriatric and thoracic anesthesia 5% each), with Scholar 7%, Professionalism 6%, Leadership and Management 5%, and Health Promotion 4%. The pass mark is set each round by a Modified-Angoff expert panel.

Sample EHPLE Anesthesia Practice Questions

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

1In the Pin Index Safety System (PISS) used on portable medical gas cylinders to prevent gas misconnection to the anesthesia machine, which pin configuration corresponds specifically to oxygen cylinders?
A.Pins 1 and 5
B.Pins 2 and 5
C.Pins 3 and 5
D.Pins 1 and 6
Explanation: The Pin Index Safety System (PISS) designates specific pin locations on cylinder yokes to prevent gas crossovers on portable cylinders. Oxygen cylinders utilize the 2-5 pin configuration. Nitrous oxide uses 3-5, air uses 1-5, and cyclopropane historically used 3-6.
2An anesthesia workstation is operating when the pipeline oxygen supply unexpectedly loses pressure, falling below 20 psi. What is the primary function of the machine's Oxygen Failure Protection Device (OFPD or fail-safe valve)?
A.It activates an auxiliary compressed air cylinder to maintain minute ventilation.
B.It halts or proportionately diminishes the flow of nitrous oxide and other non-oxygen gases.
C.It diverts high-pressure oxygen directly from the reserve cylinder to the breathing circuit.
D.It opens the scavenger interface to prevent excessive barotrauma within the circle system.
Explanation: The Oxygen Failure Protection Device (fail-safe valve) is engineered to prevent the delivery of a hypoxic gas mixture when oxygen supply pressure falls below threshold (typically 20-30 psi). It operates mechanically or pneumatically to shut off or proportionately reduce the flow of gases like nitrous oxide. It does not automatically open reserve cylinders or activate auxiliary air supplies.
3Which safety system specifically prevents the incorrect connection of high-pressure pipeline hoses from the central hospital gas distribution system to the anesthesia workstation?
A.Pin Index Safety System (PISS)
B.Oxygen Proportioning Hypoxic Guard
C.Diameter Index Safety System (DISS)
D.Quick-Release Luer-Lock System
Explanation: The Diameter Index Safety System (DISS) establishes unique body, thread, and bore dimensions for each specific medical gas hose and wall/machine fitting to prevent pipeline crossovers. In contrast, PISS governs small high-pressure gas cylinders (sizes A through E).
4An anesthetist depresses the oxygen flush valve on an anesthesia machine during the inspiratory phase of mechanical volume-controlled ventilation. What is the major hazard associated with this action?
A.Rapid dilution of anesthetic depth causing immediate intraoperative awareness without pressure change.
B.Vaporizer chamber flooding leading to lethal liquid volatile agent aspiration.
C.Cooling of the soda lime absorbent canister causing acute cessation of carbon dioxide neutralization.
D.Severe pulmonary barotrauma and hemodynamic collapse due to unmetered high flows transmitted to the patient.
Explanation: The oxygen flush valve delivers 100% oxygen directly from the intermediate pressure circuit at 35 to 75 L/min at 40–50 psi, completely bypassing vaporizers and flowmeters. When activated during mechanical inspiration, the ventilator spill valve is closed, transmitting these extreme gas flows directly into the patient's lungs, creating severe risk of pulmonary barotrauma, tension pneumothorax, and cardiovascular collapse.
5In a variable-bypass, concentration-calibrated vaporizer (such as a Tec 4 or Tec 5), what mechanism compensates for the cooling effect of latent heat of vaporization as anesthetic agent evaporates?
A.A bimetallic strip or bellows valve that automatically increases flow through the vaporizing chamber as temperature drops.
B.An electrical heating element that maintains liquid agent temperature precisely at 39°C.
C.A back-pressure check valve that restricts bypass gas volume when ambient pressure rises.
D.A manual dial trimmer that requires recalibration by the operator every 15 minutes.
Explanation: Evaporation of volatile anesthetic consumes the latent heat of vaporization, cooling the remaining liquid and reducing its saturated vapor pressure. Variable-bypass vaporizers use a temperature-compensating bimetallic strip or fluid bellows that bends as temperature decreases, widening the vaporizing chamber orifice and diverting a greater fraction of carrier gas through the chamber to maintain consistent output concentration.
6Why does desflurane require a specialized electrically heated, pressurized vaporizer (such as the Tec 6) rather than a conventional variable-bypass vaporizer?
A.Its high blood-gas partition coefficient requires extreme thermal energy to achieve clinical vapor concentrations.
B.Its boiling point is 22.8°C and saturated vapor pressure is 669 mmHg at 20°C, risking uncontrolled boiling and unpredictable delivery at room temperature.
C.It reacts corrosively with copper and aluminum components in conventional variable-bypass systems.
D.Its oil-gas solubility is so low that conventional wick systems cannot absorb the liquid agent.
Explanation: Desflurane has a boiling point of 22.8°C and a vapor pressure of 669 mmHg at 20°C (near atmospheric pressure). In a standard variable-bypass vaporizer at typical ambient temperatures, it would boil violently and deliver uncontrollably high, lethal concentrations. The Tec 6 heats desflurane to 39°C (producing a vapor pressure of ~1500 mmHg at 2 atmospheres) and injects pure vapor directly into the fresh gas stream via an electronically controlled differential pressure transducer.
7According to the Mapleson classification of breathing systems, which circuit is the most efficient (requiring the lowest fresh gas flow to prevent rebreathing) during spontaneous breathing?
A.Mapleson D (Bain system)
B.Mapleson E (Ayre's T-piece)
C.Mapleson A (Magill attachment)
D.Mapleson B
Explanation: For spontaneous breathing, Mapleson A (Magill circuit) is the most efficient because the fresh gas flow (FGF) entering near the reservoir bag pushes dead space gas out through the APL valve located near the patient during exhalation, requiring an FGF equal to alveolar minute ventilation (~0.7-1.0 times minute volume). Conversely, for controlled mechanical ventilation, Mapleson D (Bain circuit) is the most efficient.
8During general anesthesia with a circle breathing system, the capnograph demonstrates an elevated baseline where end-tidal carbon dioxide fails to return to zero during inspiration. What mechanical failure in the circle system is the most likely cause?
A.A completely occluded scavenger reservoir bag.
B.Excessive fresh gas flow exceeding 10 L/min.
C.A leak in the pilot balloon of the endotracheal tube.
D.An incompetent (stuck open) unidirectional inspiratory or expiratory valve.
Explanation: An incompetent unidirectional valve allows exhaled gas containing CO2 to re-enter the inspiratory limb or prevents unidirectional advancement of gas, leading to reinhalation of carbon dioxide. This manifests classically on the capnogram as an elevated Phase I baseline (> 0 mmHg). Other causes of baseline elevation include exhausted absorbent material.
9What is the primary chemical neutralization reaction that occurs when carbon dioxide reacts with standard soda lime in an anesthesia circle system?
A.CO2 reacts with water to form carbonic acid, which is neutralized by sodium hydroxide and calcium hydroxide to form calcium carbonate, water, and heat.
B.CO2 binds irreversibly to potassium permanganate crystals yielding potassium carbonate and oxygen gas.
C.CO2 is catalytically cracked into carbon monoxide and oxygen by silica gel granulates.
D.CO2 dissolves in barium hydroxide to produce barium sulfate precipitate and nitrogen.
Explanation: Soda lime absorption is an exothermic reaction: CO2 dissolves in moisture to form carbonic acid (CO2 + H2O <-> H2CO3). Carbonic acid reacts with the activator (NaOH) to form sodium carbonate, water, and heat (H2CO3 + 2NaOH -> Na2CO3 + 2H2O + heat). Calcium hydroxide then reacts with sodium carbonate to regenerate sodium hydroxide and form insoluble calcium carbonate (Na2CO3 + Ca(OH)2 -> CaCO3 + 2NaOH).
10Which clinical scenario markedly increases the risk of Compound A formation during the administration of sevoflurane in a circle anesthesia system?
A.Employing high fresh gas flows (> 6 L/min) through calcium hydroxide lime (Amsorb Plus).
B.Using low fresh gas flows (< 1 L/min) with desiccated, strong-base-containing carbon dioxide absorbents at high absorbent temperatures.
C.Administering sevoflurane via an open non-rebreathing Bain system.
D.Preoxygenating the patient with 100% oxygen at 10 L/min for 5 minutes.
Explanation: Compound A (a haloalkene nephrotoxin in rats) is generated when sevoflurane undergoes base-catalyzed degradation in the presence of strong alkali absorbents (potassium hydroxide or sodium hydroxide). Low fresh gas flows (< 1-2 L/min), elevated absorbent temperatures, and dry/desiccated absorbent granules significantly increase its accumulation in the circle system.

About the EHPLE Anesthesia Exam

The Ethiopian Health Professionals Licensing Examination (EHPLE) for Anesthesia is the mandatory national licensure assessment required for graduating BSc Anesthesia students and anesthesia practitioners seeking registration to practise in Ethiopia. It is regulated by the Health and Health-related Institutions and Professionals Regulatory Lead Executive Office (HHrIPR-LEO) of the Federal Ministry of Health (MoH) and measures cognitive competence, clinical judgement, pharmacology, machine safety, airway management, and perioperative resuscitation. The official MoH Information Booklet blueprint weights five key professional roles: Patient Care 78% (general surgery anesthesia 18%, obstetric anesthesia 14%, trauma and orthopedic anesthesia 10%, pediatric anesthesia 8%, neurosurgery anesthesia 6%, EENT anesthesia 6%, emergency and critical care 6%, geriatric anesthesia 5%, thoracic anesthesia 5%), Scholar 7%, Professionalism 6%, Leadership and Management 5%, and Health Promotion and Disease Prevention 4%. Passing is the statutory prerequisite for clinical anesthesia practice in Ethiopian public and private health facilities.

Exam sponsor: Federal Ministry of Health (MoH) — Health and Health-related Institutions and Professionals Regulatory Lead Executive Office (HHrIPR-LEO). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

The MoH Implementation Guideline allots roughly 1.25 minutes per question and caps a single block at 120 questions / 2 hours 30 minutes, followed by a break of at least 30 minutes before the second block. A 200-item sitting is therefore delivered as a morning and an afternoon block of 100 questions each.

Time Limit

Two 100-question blocks with a break of at least 30 minutes

Passing Score

Set each round by an expert panel using the Modified-Angoff method (no fixed percentage)

Exam / Certification Fees

Not published by MoH as a fixed public tariff. A registration fee is paid through the official portal (hple.moh.gov.et); candidates who miss a sitting without an accepted reason pay the registration fee plus a 50% penalty (MoH Exam Administration Manual). Confirm the current amount on the registration announcement.

Exam sponsor website

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.

78%

Patient Care

Obstetrics anesthesia (14%), general surgery anesthesia (18%), pediatrics anesthesia (8%), trauma and orthopedic anesthesia (10%), geriatrics anesthesia (5%), thoracic anesthesia (5%), neurosurgery anesthesia (6%), EENT anesthesia (6%), and emergency and critical care (6%).

7%

Scholar

Research literacy and evidence-based anesthesia practice, teaching, and continuing professional development.

6%

Professionalism

Ethical principles, medico-legal practice, communication, collaboration, and standards of professional conduct.

5%

Leadership and Management

Team leadership, health system and theatre management, and resource stewardship.

4%

Health Promotion and Disease Prevention

Community assessment, perioperative risk reduction, infection prevention, and preventive interventions.

Preparing for the EHPLE Anesthesia Exam

What You Need to Know

  • Passing score: Set each round by an expert panel using the Modified-Angoff method (no fixed percentage)
  • Assessment: The MoH Implementation Guideline allots roughly 1.25 minutes per question and caps a single block at 120 questions / 2 hours 30 minutes, followed by a break of at least 30 minutes before the second block. A 200-item sitting is therefore delivered as a morning and an afternoon block of 100 questions each.
  • Time limit: Two 100-question blocks with a break of at least 30 minutes
  • Exam / certification fees: Not published by MoH as a fixed public tariff. A registration fee is paid through the official portal (hple.moh.gov.et); candidates who miss a sitting without an accepted reason pay the registration fee plus a 50% penalty (MoH Exam Administration Manual). Confirm the current amount on the registration announcement. Official sources

Using Our Practice Resources

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

EHPLE Anesthesia: Suggested Study Strategy

1Thoroughly master the anesthesia workstation pneumatic systems: know the cylinder color codes, Pin Index Safety System (PISS) pin configurations, Diameter Index Safety System (DISS), oxygen flush valve flow rate (35–75 L/min), and hypoxic guard mechanical linkages.
2Memorize the physicochemical and pharmacological properties of inhalational and IV agents: blood-gas partition coefficients (solubility determining induction/emergence speed), oil-gas coefficients (potency and MAC), context-sensitive half-times, and specific receptor mechanisms.
3Understand the neuromuscular junction physiology and monitoring: train-of-four (TOF) ratio interpretation, phase I vs phase II blocks with succinylcholine, pseudocholinesterase deficiency, and the pharmacology of neostigmine/glycopyrrolate versus sugammadex.
4Commit clinical airway and neuraxial protocols to memory: ASA difficult airway algorithm, 3-3-2 rule for airway assessment, Mallampati and Cormack-Lehane scoring, landmark anatomy for lumbar puncture (L3-L4 interspace / Tuffier's line), and the emergency management of high spinal anesthesia and local anesthetic systemic toxicity (LAST with 20% lipid emulsion).
5Prioritize high-risk subspecialty clinical scenarios: left uterine displacement in obstetrics to prevent supine hypotensive syndrome, uncuffed tube leak test and narrow subglottic anatomy in neonates, damage control resuscitation ratios in trauma, and postoperative Aldrete scoring in the PACU.

Frequently Asked Questions

What is the EHPLE Anesthesia examination?

The EHPLE Anesthesia is the standardized national licensing examination administered by the Ethiopian Federal Ministry of Health (MoH) through the Health and Health-related Institutions and Professionals Regulatory Lead Executive Office (HHrIPR-LEO). It assesses whether graduating BSc Anesthesia professionals possess the essential competencies, scientific knowledge, and safe clinical judgment required to practice anesthesia autonomously in Ethiopia.

Who is eligible to sit for the EHPLE Anesthesia examination?

Graduates holding a Bachelor of Science (BSc) degree in Anesthesia from recognized Ethiopian public or private higher learning institutions, or foreign-trained anesthesia graduates whose credentials have been formally authenticated and validated by the Ethiopian Education and Training Authority (ETA) and the Ministry of Health, are eligible to sit for the exam.

What is the format, structure, and duration of the examination?

The examination is a computer-based test (CBT) consisting of 200 single-best-answer multiple-choice questions. It is administered in two consecutive 100-question blocks of 100 questions each on the same testing day, totaling Two 100-question blocks of testing time.

How is the passing cut score determined for the exam?

The passing cut score is determined for each testing round using the Modified Angoff standard-setting methodology. An expert panel of academic anesthesiologists, anesthetists, and health educators reviews each exam item to determine the expected performance of a minimally competent practitioner, establishing a fair, criterion-referenced passing threshold.

How much is the exam fee and how do candidates register?

The official registration fee is 50 Ethiopian Birr (ETB). Candidates register online through the official Health Professionals Licensing Examination portal at https://hple.moh.gov.et/, where they upload academic degree credentials, student transcripts, and identification to select an assigned regional testing center.

Are these practice questions an official EHPLE paper?

No. The EHPLE is set and delivered only by the Federal Ministry of Health; these questions are an independent study aid written against the official Information Booklet blueprint and Ethiopian national clinical guidelines. The official examination is delivered in English as computer-based, four-option, single-best-answer MCQs, so the item format here matches the real assessment, but this bank is not an official past paper, a released item pool, or a simulation of the live testing environment. Always confirm registration dates, fees, and exam-day rules on moh.gov.et/ehple and hple.moh.gov.et.