RESP 130 Week 3 - Storage and Delivery of Medical Gases

These flashcards cover key concepts related to the storage and delivery of medical gases, focusing on production methods, physical properties of gases, cylinder types, safety systems, and flowmeters.

What method is primarily used to produce large quantities of oxygen?

Fractional distillation

How does fractional distillation produce oxygen?

Atmospheric air is filtered, liquified, and nitrogen is boiled off to leave pure oxygen

What is the physical profile of nitrogen?

Colorless, tasteless, odorless, nonflammable

What describes the physical properties of helium?

Colorless, tasteless, odorless, nonflammable

What are the physical characteristics of carbon dioxide?

Colorless, slightly acidic, odorless, nonflammable

What is the physical profile of nitric oxide?

Colorless, tasteless, metallic odor, combustible

What describes the physical properties of oxygen?

Colorless, tasteless, odorless, combustible

What condition is heliox used to treat and why?

Severe cases of airway obstruction to decrease work of breathing

What is the medical use of nitric oxide?

PPHN and hypoxic respiratory failure

What is the color code for medical air?

Yellow

What color code is assigned to carbon dioxide?

Gray

What color code is used for oxygen?

Green

What is the color code for helium?

Brown

What material is a Type 3A cylinder made of?

Carbon steel

What material is a Type 3AL cylinder made of?

Aluminum alloys

What are the conversion factors for D, E, and H cylinders?

D: 0.16, E: 0.28, H: 3.14

What are the 3 types of cylinder safety relief valves?

Frangible, fusible, spring-loaded

What are the two functions of a cylinder safety valve?

Vent gas into the atmosphere if heated and prevent tank pressure from becoming too high

What are the main parts of a cylinder valve?

Chrome-plated brass body, threaded inlet connector, stem, outlet connection, pressure relief valve

What are the two types of cylinder valves?

Direct-acting and diaphragm

What calculation determines the time remaining in a gas cylinder?

(psi - reserve) x conversion factor / flow

What are the 3 safety index connector systems and what are they used for?

ASSS for large cylinders, DISS for wall systems, PISS for small cylinders

In the Pin-Index Safety System, where are the pin locations for oxygen and air?

Oxygen: 2-5, Air: 1-5

What are the two defining characteristics of a Bourdon gauge?

It is fixed pressure and not gravity dependent

What type of flowmeter is a Thorpe tube and what system does it correspond with?

Constant pressure, DISS

Which flowmeter is best for transport?

Bourdon gauge

What is the formula for calculating time remaining for liquid oxygen by weight?

(Weight on gauge - Reserve) x 344 L / Flow

What is the formula for calculating time remaining for liquid oxygen by Liters?

(Liquid Volume on Gauge - Reserve) x 860 L / Flow