50+ Biomedical Engineer Interview Questions and Answers

Endoscopy and bronchoscopy are both types of scopes used for different parts of the body. Leak tests are performed to ensure proper functioning of the scopes.

• Endoscopy is used to examine the digestive tract while bronchoscopy is used to examine the airways and lungs.

• Leak tests are performed to ensure that the scopes are functioning properly and there are no leaks that could cause harm to the patient.

• The light source and processor are the heart of these departments as they pro...read more

We use various brands for infusion and syringe pumps depending on the specific needs of the patient and the hospital's inventory.

• Brands include Baxter, Hospira, and Braun

• Selection is based on factors such as accuracy, flow rate, and compatibility with medications

• Regular maintenance and calibration are performed to ensure proper function

EEG and EMG are departments that use electrodes to measure brain and muscle activity. They help diagnose neurological and muscular disorders.

• EEG measures electrical activity in the brain while EMG measures electrical activity in muscles.

• EEG is used to diagnose epilepsy, sleep disorders, and brain injuries.

• EMG is used to diagnose nerve and muscle disorders such as ALS and carpal tunnel syndrome.

• Electrodes are placed on the scalp or skin to detect electrical signals and transmi...read more

Dialysis is a medical procedure used to remove waste and excess fluid from the blood when the kidneys are unable to do so.

• Dialysis is performed when the kidneys are unable to filter waste and excess fluid from the blood

• It is used to treat kidney failure and chronic kidney disease

• Common dialysis machines include those made by Fresenius Medical Care and Baxter

• Flow alarm in dialysis machine alerts the medical staff if there is a problem with the flow rate of blood or dialysate

I have experience working with multiple brands of ventilators including Philips, Medtronic, and GE Healthcare.

• Philips

• Medtronic

• GE Healthcare

Questions related to biomedical engineering including multi para monitor, tidal volume, ventilator, soldering knowledge, and electronic components.

• Multi para monitor is a medical device used to measure multiple vital signs such as blood pressure, heart rate, and oxygen saturation.

• Tidal volume is the amount of air that is inhaled and exhaled during normal breathing.

• A ventilator is a machine that helps a patient breathe by delivering oxygen to the lungs.

• To solve the issue when ...read more

Labour room is a specialized department in hospitals where women give birth. UV rays machines are used to disinfect the room.

• Labour room is also known as delivery room or birthing room.

• It is equipped with specialized medical equipment and supplies to assist in childbirth.

• The room is designed to provide a comfortable and safe environment for the mother and baby.

• UV rays machines are used to disinfect the room and prevent the spread of infections.

• UV rays can kill bacteria, virus...read more

To check if a ventilator is working perfectly, we need to measure minute ventilation (MV).

• MV is the amount of air that a patient breathes in one minute

• It is calculated by multiplying the tidal volume (amount of air inhaled in one breath) by the respiratory rate (number of breaths per minute)

• To check if a ventilator is working perfectly, we need to measure the patient's MV and compare it to the set MV on the ventilator

• If the measured MV is within a certain range of the set MV,...read more

The main pocket tools of a bio medical engineer include stethoscope, blood pressure cuff, thermometer, otoscope, and reflex hammer.

• Stethoscope for listening to heart and lung sounds

• Blood pressure cuff for measuring blood pressure

• Thermometer for measuring body temperature

• Otoscope for examining the ear canal and eardrum

• Reflex hammer for testing reflexes

• Other tools may include surgical instruments, ultrasound machines, and ECG machines

Defibrillator is important for treating life-threatening cardiac arrhythmias. Manual mode and AED mode are two different modes of operation.

• Defibrillator is used to deliver an electric shock to the heart to restore its normal rhythm.

• Manual mode requires a trained medical professional to operate the defibrillator and adjust the energy level of the shock based on the patient's condition.

• AED mode is designed for use by non-medical personnel and automatically analyzes the patient...read more

Laboratories play a crucial role in hospitals by providing diagnostic and testing services. Various machines are used in laboratories.

• Laboratories help in diagnosing diseases and monitoring treatment progress

• They perform various tests such as blood tests, urine tests, and imaging tests

• Common machines used in laboratories include microscopes, centrifuges, spectrophotometers, and PCR machines

• These machines help in analyzing samples and detecting abnormalities

• Laboratories also p...read more

We use Fluke brand tools for calibration.

• Fluke is a reliable and accurate brand for calibration tools.

• We have found their products to be durable and long-lasting.

• Examples of Fluke tools we use include multimeters and calibrators.

I will check the power source and connections, troubleshoot the equipment, and consult the manual or manufacturer.

• Check if the power source is working properly

• Ensure all connections are secure and not damaged

• Troubleshoot the equipment by checking for error messages or warning lights

• Consult the manual or manufacturer for further guidance

• Consider contacting technical support or a repair technician if necessary

CSSD stands for Central Sterile Supply Department. It is mandatory in hospitals to ensure proper sterilization of medical equipment.

• CSSD is responsible for cleaning, sterilizing, and distributing medical equipment and supplies.

• It helps prevent the spread of infections and diseases in hospitals.

• Major equipment names in CSSD include autoclaves, ultrasonic cleaners, and sterilization pouches.

• CSSD staff must follow strict protocols and guidelines to ensure proper sterilization an...read more

SICU, ICCU, SHDU, MICU, MHDU, NICU, CTICU, KTU, and PACU are all medical units in hospitals.

• SICU - Surgical Intensive Care Unit

• ICCU - Intensive Cardiac Care Unit

• SHDU - Step-Down High Dependency Unit

• MICU - Medical Intensive Care Unit

• MHDU - Medical High Dependency Unit

• NICU - Neonatal Intensive Care Unit

• CTICU - Cardiothoracic Intensive Care Unit

• KTU - Kidney Transplant Unit

• PACU - Post-Anesthesia Care Unit

UPS sockets are preferred for medical equipment due to their ability to provide uninterrupted power supply.

• Medical equipment requires a constant and stable power supply to function properly.

• Power outages or fluctuations can cause damage to the equipment or compromise patient safety.

• UPS sockets provide a backup power source in case of power failure or interruption.

• They also help regulate voltage and prevent power surges that can damage the equipment.

• Examples of medical equipme...read more

Preventive maintenance (PM) and calibration are routine activities performed to ensure equipment reliability and accuracy.

• PM involves scheduled inspections, cleaning, and replacement of parts to prevent equipment failure.

• Calibration involves adjusting equipment to ensure accurate measurements.

• Performing PM and calibration can prevent costly equipment downtime and ensure accurate results.

• Examples of equipment that require PM and calibration include medical imaging machines, la...read more

Common technical parts of a ventilator that may breakdown

• Tubing and connectors

• Airflow sensors

• Pressure sensors

• Valves

• Motors and fans

• Circuit boards

• Power supply

• Oxygen sensors

• Display screens

• Filters

Household equipment work on different frequencies depending on the type of equipment.

• The frequency of household equipment varies depending on the type of equipment.

• Most household appliances work on either 50 or 60 Hz frequency.

• Some examples of household equipment and their frequencies are: refrigerator (60 Hz), washing machine (50 Hz), microwave oven (2450 MHz).

Radiology is a medical specialty that uses medical imaging to diagnose and treat diseases. Radiation is energy that travels through space and matter.

• Radiology involves the use of various imaging techniques such as X-rays, CT scans, MRI, and ultrasound.

• Radiation therapy is a common treatment for cancer that uses high-energy radiation to kill cancer cells.

• Radiology equipment includes X-ray machines, CT scanners, MRI machines, ultrasound machines, and nuclear medicine cameras.

• Ra...read more

Infusion pumps can be calibrated by using a known volume of fluid and adjusting the pump settings to deliver the correct amount.

• Use a known volume of fluid to test the pump's accuracy

• Adjust the pump settings to deliver the correct amount of fluid

• Repeat the process multiple times to ensure consistency

• Document the calibration process and results for future reference

Inspections in construction projects ensure compliance with regulations and quality standards.

• Inspections are conducted at various stages of the construction project, such as pre-construction, during construction, and post-construction.

• Inspectors check for compliance with building codes, safety regulations, and quality standards.

• Examples of inspections include structural inspections, electrical inspections, plumbing inspections, and fire safety inspections.

• Inspections help id...read more

I have experience handling a variety of equipment types in the biomedical field.

• MRI machines - Siemens MAGNETOM Skyra

• X-ray machines - GE Healthcare Optima XR240amx

• Ultrasound machines - Philips EPIQ 7

• CT scanners - Toshiba Aquilion Prime SP

Medical equipment includes devices used for diagnosis, treatment, and monitoring of medical conditions.

• MRI machine (GE Healthcare)

• Ultrasound machine (Philips Healthcare)

• X-ray machine (Siemens Healthineers)

• ECG machine (Schiller AG)

• Ventilator (Medtronic)

• Defibrillator (Physio-Control)

• Infusion pump (Baxter International)

• Blood glucose meter (Roche Diagnostics)

• Pulse oximeter (Masimo Corporation)

Equipment in sluice combination rooms include sinks, hand hygiene stations, waste disposal units, and storage for cleaning supplies.

• Sinks for handwashing and cleaning equipment

• Hand hygiene stations with soap and hand sanitizer

• Waste disposal units for disposing of contaminated materials

• Storage for cleaning supplies such as disinfectants and gloves

Life saving equipment includes defibrillators, ventilators, and oxygen tanks.

• Defibrillators

• Ventilators

• Oxygen tanks

The question is unclear and lacks context.

• Please provide more information or clarify the question.

• It is difficult to understand what is being asked.

• Without additional context, it is impossible to provide a meaningful answer.

ECG is a test that records electrical activity of the heart. TMT is a stress test. Fetal Doppler is used to monitor fetal heartbeat. PFT is a lung function test.

• ECG - measures heart's electrical activity

• TMT - measures heart's response to exercise

• Fetal Doppler - used to monitor fetal heartbeat during pregnancy

• PFT - measures lung function and capacity

Isolation rooms in hospitals include airborne infection isolation rooms, protective environment rooms, and contact isolation rooms.

• Airborne infection isolation rooms are used for patients with airborne diseases like tuberculosis or measles.

• Protective environment rooms are for patients with weakened immune systems, like those undergoing chemotherapy.

• Contact isolation rooms are for patients with contagious infections like MRSA or C. diff.

• Negative pressure rooms help prevent the...read more

Snagging is the process of identifying and documenting issues or defects in a product or system.

• Snagging involves inspecting a product or system for any faults, defects, or issues.

• The identified issues are then documented in a snagging list for further action.

• Snagging is commonly done during quality control checks in manufacturing or construction projects.

I have handled various medical equipment including MRI machines, ultrasound machines, and surgical robots.

• MRI machines

• Ultrasound machines

• Surgical robots

• X-ray machines

• ECG machines

• Pacemakers

• Defibrillators

• Ventilators

Heating power is the rate at which heat is generated or transferred within a system.

• Heating power is typically measured in watts (W).

• It is important in applications such as medical devices, where precise control of temperature is necessary.

• Examples include heating pads, incubators, and thermal therapy devices.

ICU and OT equipment list with working style

• ICU equipment: ventilator, patient monitor, infusion pump, defibrillator, suction machine

• OT equipment: anesthesia machine, surgical lights, operating table, cautery machine, endoscope

• Ventilator helps in breathing, patient monitor tracks vital signs, infusion pump delivers medication, defibrillator shocks heart, suction machine clears airway

• Anesthesia machine administers anesthesia, surgical lights provide illumination, operating tab...read more

The normal respiratory rate for adults is 12-20 breaths per minute.

• Respiratory rate is the number of breaths per minute

• It can vary based on age, activity level, and health status

• Normal respiratory rate for infants is 30-60 breaths per minute

• Normal respiratory rate for children is 20-30 breaths per minute

Ambu bag is a manual resuscitator used to provide positive pressure ventilation to patients who are not breathing or not breathing adequately.

• Ambu bag is also known as a bag valve mask (BVM) or manual resuscitator.

• It consists of a self-inflating bag, a non-rebreathing valve, and a face mask.

• The bag is squeezed by hand to provide positive pressure ventilation to the patient's lungs.

• It is commonly used in emergency situations or during anesthesia.

• The non-rebreathing valve preve...read more

Radiology machines are used to produce medical images of the body using X-rays, CT scans, MRI, and ultrasound.

• Radiology machines use different types of imaging techniques such as X-rays, CT scans, MRI, and ultrasound.

• X-ray machines use electromagnetic radiation to produce images of bones and other dense tissues.

• CT scans use X-rays and computer technology to produce detailed images of internal organs and tissues.

• MRI machines use strong magnetic fields and radio waves to produc...read more

The normal heart rate for adults is between 60-100 beats per minute.

• Normal heart rate range is 60-100 bpm

• Heart rate can vary based on age, fitness level, and health conditions

• Resting heart rate is typically lower than during physical activity

Electrical safety tests are conducted to ensure medical devices meet safety standards.

• Electrical safety tests are performed to verify insulation resistance, ground continuity, and leakage current.

• These tests are crucial for ensuring the safety of patients and healthcare professionals using medical devices.

• Examples of electrical safety tests include dielectric strength test, ground bond test, and patient auxiliary leakage current test.

A power supply is a device that provides electrical energy to an electrical load.

• Converts one form of electrical energy to another

• Can be AC (alternating current) or DC (direct current)

• Examples include batteries, generators, and power outlets

A sensor is a device that detects and responds to some type of input from the physical environment.

• Sensors convert physical quantities into electrical signals

• They are used in various applications such as temperature monitoring, motion detection, and pressure sensing

• Examples of sensors include thermometers, accelerometers, and pressure sensors

Biomedical engineering is the application of engineering principles and design concepts to medicine and biology.

• It involves the development of medical devices, prosthetics, and imaging equipment.

• It also includes the design and implementation of healthcare software and systems.

• Biomedical engineers work closely with medical professionals to improve patient care and outcomes.

• Examples of biomedical engineering include artificial organs, pacemakers, and MRI machines.

OT light luminance refers to the brightness of the operating theater light.

• OT light luminance is measured in lux or foot-candles.

• It is important to have appropriate light levels in the operating theater to ensure optimal visibility for surgeons and medical staff.

• The recommended light level for surgical procedures is typically around 40,000 to 160,000 lux.

• Different types of surgical procedures may require different light levels.

• OT lights often have adjustable settings to contr...read more

5S is a methodology used to organize and maintain a clean and efficient workplace.

• 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain.

• It is commonly used in manufacturing and healthcare industries.

• The goal is to improve safety, productivity, and quality by eliminating waste and improving organization.

• Examples of 5S implementation include organizing tools in a workshop, labeling and organizing medical supplies in a hospital, and maintaining a clean and organized ...read more

7 QC tools are a set of statistical tools used in quality control to identify and solve problems.

• The 7 QC tools include: Pareto chart, cause-and-effect diagram, check sheet, control chart, histogram, scatter diagram, and flowchart.

• These tools help in identifying the root cause of a problem and finding solutions to improve quality.

• They are widely used in industries such as manufacturing, healthcare, and engineering.

• For example, a biomedical engineer may use the 7 QC tools to a...read more

Quality refers to the degree of excellence or superiority of a product or service.

• Quality is subjective and can vary depending on the context and the individual's expectations.

• It can be measured through various metrics such as reliability, durability, efficiency, and customer satisfaction.

• Quality is essential in the medical field to ensure patient safety and effective treatment.

• Quality control processes are implemented to maintain and improve the quality of products and servi...read more

A multimeter is a device used to measure voltage, current, and resistance in electrical circuits.

• Multimeters have different settings for measuring voltage, current, and resistance.

• They typically have a digital display to show the measured values.

• Multimeters can also be used to test continuity and diodes in circuits.

• Some advanced multimeters can measure capacitance and temperature as well.

A ventilator is a medical device that helps patients breathe by delivering oxygen into the lungs and removing carbon dioxide from the body.

• Ventilators are commonly used in hospitals, especially in intensive care units.

• They are essential for patients who are unable to breathe on their own due to conditions such as respiratory failure, pneumonia, or COVID-19.

• Ventilators can be invasive, where a tube is inserted into the patient's airway, or non-invasive, using a mask or nasal p...read more