Gas Laws
This gas law states that the pressure of a gas is inversely proportional to its volume at a constant temperature.
What is Boyle's Law?
We use three (3) scales to measure temperature.
What are Kelvin, Celcius & Fahrenheit?
The minimum safe distance from the radiation source in the OR.
What is 6 feet?
A "pop off" valve that determines how much gas remains in the circuit and how much gas is directed to the scavenger.
What is the APL valve?
This breathing system does not allow for controlled ventilation, nor does it permit the delivery of precise gas concentrations.
What is an open breathing system?
This gas law describes the relationship between the pressure and temperature of a gas when the volume is constant.
What is Gay-Lussac's Law?
Heat energy that is transferred from the object with higher temperature to the object with lower temperature through molecular collisions.
What is conduction?
There are 3 ways to limit radiation exposure.
What are distance, duration and shielding.
Any device that is placed between the Y-piece and the patient (such as a heat & moisture exchanger (HME), increases _______________.
What is dead space?
This type of vaporizer automatically compensates vaporizer output at changes in elevation.
What is a variable bypass vaporizer?
Henry's Law describes the relationship between the concentration of a gas in a liquid and this factor in the surrounding gas.
What is the partial pressure of the gas?
This process of heat transfer occurs when heat is transferred through the movement of fluids, such as air or water.
What is convection?
These two (2) organs are most suseptible to radiation injury in the non-pregnant patient.
What is the eye and the thyroid?
This test assesses the integrity of the low pressure circuit from the flowmeter valves to the common gas outlet.
What is the low-pressure leak test or negative pressure test?
In this ventialtion mode, a pre-set tidal volume is delivered over a pre-determined time. The peak inspiratory pressure will vary as a function of the patient's compliance.
What is volume-controlled ventilation?
This gas law states that the total pressure is equal to the sum of the partial pressures exerted by each gas inthe mixture.
What is Dalton's Law?
The amount of heat required to change a substance from a solid to a liquid state.
What is latent heat?
Ionizing radiation can remove electrons from atoms creating these unstable molecules that can cause tissue injury, chromosomal damage, and malignancy.
What are free radicals?
This test is conducted by closing the APL valve, pressurizing the circuit to 30cm H2O, and making sure the airway pressure gauge remains constant.
What is the high-pressure leak test?
This law desribes the relationship between wall tension, internal pressure, and radius.
What is the law of LaPlace?
This gas law says that at a constant pressure, the temperature and volume of a gas are directly proportional.
What is Charles' Law?
There are 100 degrees between the boiling and melting points of water in BOTH of these temperature scales.
What are Celcius and Kelvin?
(Celcius=K-273; Kelvin = Celcius+273)
This law states that the amount of radiation exposure is inversely proportional to the square of the distance of the source.
What is the inverse square law?
Two (2) common conditiions that increase inspired CO2 in a Circle system.
What is an incompetent unidirectional valve and exhausted CO2 absorbent?
This number says that 1 mole of any gas is made up of 6.023 x 1023 atoms.
What is Avogadro's number?