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CBET
certified bmet study guide
| Question | Answer |
|---|---|
| What lab function uses Spectrophotometry | Chemistry |
| How does a spectrophotometer work | It measures the absorption of light of various wavelengths by a sample of a substance. By determining the light absorption characteristics of the sample, a determination can be made about what is in the sample. |
| How does GFCI function | Trips at 6 mA current to ground. Used to interrupt the power in a circuit when there is excessive flow of current to ground. Hot to neutral |
| CRT displays only purple, what is wrong | Faulty electron gun or damaged VGA cable |
| During an ent procedure in the OR the nurse complains the monitor only displays green. | Brightness to high |
| Leakage current standards: If you have an encapsulated piece of equipment with no metal exposed how do you check for resistance | add grounding pin |
| Purpose of JC- Establish standards of operation for healthcare facilities | Recommendations for environment of care |
| What organization provides maintenance inspection cycles | ECRI |
| A technician receives for calls with in 15 minutes, What device do you service first | interaoritc balloon pump, NIBP, infusion pump, telemetry |
| Telemetry has infection materials on it | sterilize IAW mfr instructions and then functional checkout. |
| How do you increase temp in a steam sterilizer above 212F | increase pressure |
| NFPA 99 leakage current in lab | 500 microamperes. |
| Hot pack heating unit, you measure .1 ohms on power resistance, but safety analyzer displays overload leakage current, what is wrong? | water level was low |
| Using an ankle compression device, the nurse complains it’s not working. What do you check for | Kinked tubing Cuff placement |
| Nurse complains bad SPO2 reading on infant? | Bad probe placement |
| Centrifuge will power up and turn by hand and brushes are fine, unit will not spin what is wrong? | Door interlock broken |
| What is the role of a monocronmater inside a spectrometer | Removes stray light waves and aids in the measurement of a specific wavelength |
| Measuring frequencies of light | spectrometer |
| What is the most common medium for LAN connections | twisted pair and fiber optics |
| What is the most common connector for LAN | CAT5 cable with RJ-45 |
| What is UDP | a. User Datagram Protocol: is one of the core members of the Internet Protocol Suite, the set of network protocols used for the internet |
| What is the purpose of the CPU? | Fetches and processes data |
| A 15 pin Hd-D cable is used for | VGA connector is found on many video cards, computer monitors, and some high definition television sets |
| 2.4MHZ signal in a hospital, what could cause interferences | radio-frequency process heating, microwave ovens, and medical diathermy machines, Wireless internet |
| What test is conducted when you open the door of an infusion pump? | Free flow |
| PCA pump was operation fine for an hour, but patient could not deliver dose: What is wrong? | Pt received alloted amount of medication in 2 hour period |
| 43. Central monitoring networked to beds, but cannot communicate with one of the beds, how do you trouble shoot? | Ping,Check cable at bed |
| What 2 cavities does the diaphragm separate | Thoracic cavity and the abdominal cavity |
| What membrane covers the lungs? | Pleural membrane |
| What system regulates body chemistry | Endocrine |
| What system is the pancreas part of? | Digestive and endocrine system(insulin) |
| What is low blood count? | Anemia |
| 50. How do you calculate FRC? | The sum of ERV and RV |
| 56. What is the clear outer membrane of the eyeball called? | Cornea |
| 57. What controls respiration | Medulla oblongata- involuntary functions, such as breathing, heart rate and blood pressure. |
| 59. A colorimeter is a device used in colorimetry | . In scientific fields the word generally refers to the device that measures the absorbance of particular wavelengths of light by a specific solution |
| 60. Incoming a 60hz signal sine wave, passes a full wave rectifier. What is the hz? | 120hz |
| 61. Test load for defibs | 50ohm non-inductive |
| 62. What is the best type of fire extinguisher of electrical equipment? | C or CO2 extinguisher |
| 63. Water fire extinguishers can be used on what type of fire? | Class/Type A only |
| 64. What do you do to a piece of lab equipment that is measuring 23 micro amps of leakage current? | normal operation |
| 65. Who establishes the standards for blood warmers? | American Association of Blood banks AABB |
| 66. ESU in pure cut mode and the unit is not providing any output, what do you do? | Check patient plate, in bipolar mode? |
| 67. What wavelength is the argon beam in? | blue beam. Ultraviolet, visible light, near infrared, far infrared |
| 68. How do you measure cardiac output? | l/min |
| 69. What triggers a subcutaneous pacemaker? | will trigger when intrinsic heart rate falls below a programmable limit. 1. Requires both a sensing and triggering mechanism. 2. Can be converted to fixed-rate via magnet. |
| 70. Laser safety goggles are good for? | Any lasers complete …. Complete… substantial protections from the laser they are designed for. Caution must be used. Eyewear must be selected for the specific type of laser, to block or attenuate in the appropriate wavelength rangE |
| 71. Water cooled dye laser stopped working mid procedure, what went wrong? | Water flow insufficient |
| 72. During ultrasound procedure, patient says therapy is too hot: | coupling media |
| 73. What is the timeframe to report an incident to the SMDA? | 10 business days |
| 74. What is aspect ratio on a monitor? | Length times width |
| 75. What is RMS voltage? | also known as the quadratic mean, is a statistical measure of the magnitude of a varying quantity. VPx.707 VPPx.3535 |
| 76. Staff is complaining about headaches in operation room? | Scavenger system defective |
| What are the benefits negative pressure ventilation? | Protect surrounding areas from airborne Pathogens |
| What does MSDS contain? | It supplies information about a material, such as the types of hazards associated with the material and first aid to take if an exposure takes place. |
| What are most temperature transducers in hospitals? | Negative coefficient |
| . What measures uterine contractions? | Tocodynamometer |
| What is a film badge used for? | To measure amount of radiation exposure |
| What kind of tools used for laser equipment? | Non-reflective, anodized or flat black. |
| What tools used for 02 enriched environment? | No grease, oil on tools or non-sparking. |
| What is flash point? | The flash point of a volatile material is the lowest temperature at which it can vaporize to form an ignitable mixture in air. |
| . While working on a piece of equipment, the tech breathes a toxic vapor. What do you do? | Remove them from the area, call from help. |
| What is a hyperbaric chamber use for? | Hyperbaric chambers are used to deliver hyperbaric oxygen therapy (HBOT). |
| Diffusion | describes the spread of particles through random motion from regions of higher concentration to regions of lower concentration. |
| . Osmosis | the movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration |
| . A battery has a open circuit voltage of 22V connected to a load resistsance of 200 ohms. The current of 100mA. What is the internal resistance of the battery? | 20 ohm |
| You have a VRMS of 8.484 what is the VP of supply voltage? | (VRMS=VPx.707; VRMS/.707=VP or VRMS x 1.414=VP) |
| You have a voltage drop of 40V on R1, 80V on R2, and 100V on R3. What’s the total supply voltage? | 220 |
| What does a fetal heart monitor measure? | Fetal heart rate, inter-uterine pressure, and maternal heart rate |
| What is the primary danger of lasers? | intensity |
| . Your working on a piece of equipment how do you keep the equipment from being energized? | Lock out tag out, tell user not to turn on circuit breaker, turn circuit breaker off. |
| If nurse calls with no indication of ECG on monitor whats the most appropriate action of the technician? | Request the nurse check the leads and electrods |
| Whats a film badge used for? | To measure the exposure of the person wearing it |
| which of the following is an organ of the hepatopancreatic system? | Liver |
| An upright pt scale returns varying weights, BMET checked out unit | unlevel scale |
| how does an ultrasound receive energy back from the tissue? | low energy reflected pulse |
| Corotid uses | higher freq ultrasound |
| Ultrasound range | 15 MHZ |
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