Question 1

You are about to transport a patient from computerized tomography (CT) to the intensive care unit who is being bagged with a bag-mask. You set the liter flow at 15 Lmin. The cylinder reads 1,000 psi. How long do you have before the cylinder is empty?

Accepted Answer

To calculate the time until cylinder depletion, use the following formula: 
Time = ((Cylinder pressure x Cylinder factor)/Flow rate) 
Cylinder factor for oxygen is 0.28 
Time = ((1000 x 0.28)/15) = 18.6 minutes 
Therefore, the answer is C, 18 minutes. It's important to note that the cylinder pressure and flow rate should be regularly monitored throughout the transport to ensure sufficient oxygen supply for the patient.

Question 2

A fiber-wrapped aluminum oxygen cylinder may be filled to:

Accepted Answer

Fiber-wrapped aluminum oxygen cylinders are typically rated for a maximum pressure of 3,000 psi, allowing them to safely contain oxygen at this pressure level.

Question 3

Which of the following should be observed when storing cylinders?
I. Post the names of gases being stored.
II. Keep empty and full cylinders separate.
III. Use chains to secure the cylinders to the wall.
IV. Do not store flammable substances with the cylinders.

Accepted Answer

All listed practices are important for safety when storing cylinders. Posting the names of gases helps in identifying them quickly in case of an emergency. Keeping empty and full cylinders separate helps in inventory management and also in emergency situations to know which cylinders are potentially hazardous. Using chains to secure the cylinders prevents them from falling and possibly causing injury or damage. Not storing flammable substances with the cylinders reduces the risk of fire or explosion, as many gases stored in cylinders can be highly flammable or react dangerously with other substances.

Question 4

Upon inspection you note the letter and number combination of 3AA stamped into an oxygen cylinder's shoulder. This means:

Accepted Answer

The "3AA" marking on an oxygen cylinder indicates that it is made of chrome molybdenum steel, as per the Department of Transportation (DOT) specifications.

Question 5

Which of the following are true regarding a 3AA "H" size oxygen cylinder?
I. The cylinder contains 22 cubic feet when full.
II. The cylinder contains 244 cubic feet when full.
III. The cylinder may be filled to 2,200 psi.
IV. The cylinder may be filled to 3,000 psi.

Accepted Answer

A 3AA "H" size oxygen cylinder contains 244 cubic feet of oxygen when full and may be filled to a pressure of 2,200 psi.

Question 6

Which of the following should be observed when withdrawing cylinder contents?
I. Leave the cylinder cap in place until you attach a regulator or reducing valve.
II. Follow all safety precautions.
III. Do not force any threaded connections.
IV. Open cylinder valves slowly.

Accepted Answer

All of the options should be observed when withdrawing cylinder contents to ensure safety and prevent any accidents. Leaving the cylinder cap in place until a regulator or reducing valve has been attached ensures that the contents do not leak out uncontrollably. Following all safety precautions is necessary to prevent any accidents or injuries. Forcing threaded connections can result in damage to the equipment or leaks, so it is to be avoided. Opening cylinder valves slowly allows for a gradual release of contents, reducing the risk of sudden changes in pressure that can also cause accidents.

Question 7

You are working with an outpatient who needs to go home on an "E" cylinder. She is wearing a nasal cannula at 2 L/min, and her cylinder has 1,500 psi remaining. She needs to travel by car one and one-half hours to reach her home and her concentrator. Can she make it?

Accepted Answer

To calculate if the patient can make it, we need to determine how many hours of oxygen the patient has left in their E cylinder. 
First, we need to find out the flow rate in liters per minute (L/min) that the tank is dispensing at. For an E cylinder, the flow rate is approximately 0.3 L/min. 
Next, we use the following formula to determine how many hours of oxygen are left in the tank: 
(PSI remaining in tank x tank factor)/flow rate = remaining time in hours 
In this case, using the tank factor for an E cylinder (0.28), we get: 
(1,500 psi x 0.28)/0.3 L/min = 1,400 minutes or 23.3 hours 
The patient needs oxygen for 1.5 hours, which is less than the remaining time in the tank. Therefore, the patient can make it home on the E cylinder.

Question 8

Which of the following are true regarding a 3AA "E" size oxygen cylinder?
I. The cylinder contains 22 cubic feet when full.
II. The cylinder contains 244 cubic feet when full.
III. The cylinder may be filled to 2,200 psi.
IV. The cylinder may be filled to 3,000 psi.

Accepted Answer

A 3AA "E" size oxygen cylinder typically contains about 22 cubic feet of oxygen when full and can be filled to a pressure of 2,200 psi.

Question 9

The international color code for oxygen is:

Accepted Answer

The answer of The international color code for oxygen is:
...

Question 10

Upon inspection you do not see the letter and number combination of 3AL stamped into an oxygen cylinder's shoulder. This means:

Accepted Answer

The absence of the letter and number combination of 3AL stamped into the oxygen cylinder's shoulder indicates that the cylinder is made of aluminum.

Question 11

You are setting a patient up on a non-rebreathing mask at a liter flow of 10 L/min. The "H" cylinder you are using reads 1,700 psi. How long will the cylinder last until you need to change it at 500 psi?

Accepted Answer

The answer of You are setting a patient up on...

Question 12

Which of the following should be observed when moving an "H" cylinder of oxygen?
I. Leave the valve cap on.
II. Don't lift the cylinder by its cap.
III. Don't slide or drag the cylinder.
IV. Don't drop the cylinder.

Accepted Answer

All four precautions are essential when moving an "H" cylinder of oxygen to ensure safety and prevent accidents or damage to the cylinder.

Question 13

Which of the following are true regarding a direct-acting cylinder valve?
I. It acts directly on the valve seat.
II. Turning the valve stem moves a diaphragm.
III. It is used on large cylinders (H or K).
IV. It is used on small cylinders (E).

Accepted Answer

I. A direct-acting cylinder valve acts directly on the valve seat to control the flow of gas.IV. It is typically used on small cylinders, such as E cylinders, due to its simplicity and direct mechanism.

Question 14

The diameter index safety system (DISS):
I. uses different pitches and threads per inch
II. uses internal and external threads
III. is intended for low pressure (< 200 psi)
IV. is intended for high pressure (> 200 psi)

Accepted Answer

The Diameter Index Safety System (DISS) uses different pitches and threads per inch (I) and internal and external threads (II) to prevent misconnections. It is intended for low pressure applications (< 200 psi) (III).

Question 15

Station outlets may consist of:
I. Diameter Index Safety System (DISS) fittings
II. American Standard Safety System (ASSS) fittings
III. quick connect fittings

Accepted Answer

Station outlets can consist of Diameter Index Safety System (DISS) fittings and quick connect fittings, which are designed to prevent the misconnection of gas lines. The American Standard Safety System (ASSS) is used for large cylinders and their connections, not typically for station outlets.

Question 16

Which of the following are true regarding a direct-acting cylinder valve?
I. It acts directly on the valve seat.
II. Turning the valve stem moves a diaphragm.
III. It is used on large cylinders (H or K).
IV. It is used on small cylinders (E).

Accepted Answer

I. A direct-acting cylinder valve acts directly on the valve seat to control the flow of gas.IV. It is typically used on small cylinders, such as E cylinders, due to its simplicity and direct mechanism.

Question 17

If a hydrostatic test date has a "+" sign following it:

Accepted Answer

If a hydrostatic test date has a "+" sign following it, the cylinder must be tested in 10 years.

Question 18

Most oxygen alarm panels are located:

Accepted Answer

The answer of Most oxygen alarm panels are located:
...

Question 19

You need to transport a patient by helicopter to your home base one and one-half hours away. You are using a bag-mask at a liter flow of 15 L/min. How many full "E" cylinders do you need for the transport?

Accepted Answer

An "E" cylinder holds about 625 liters of oxygen. For a 1.5-hour transport at 15 L/min, you'll need 1350 liters (1.5 hours x 60 minutes/hour x 15 L/min). Dividing 1350 liters by the 625 liters an "E" cylinder holds gives you 2.16, meaning you'll need three full cylinders to ensure you have enough oxygen for the transport.

Question 20

During hydrostatic testing, a cylinder is filled to:

Accepted Answer

During hydrostatic testing, a cylinder is filled with a liquid, typically water, and pressurized to 5/3 (167%) of the cylinder's service pressure. This ensures the cylinder is capable of containing the gas at its maximum rated pressure.

Quiz 1: Medical Gas Supply Equipment

You are about to transport a patient from computerized tomography (CT) to the intensive care unit who is being bagged with a bag-mask. You set the liter flow at 15 Lmin. The cylinder reads 1,000 psi. How long do you have before the cylinder is empty?

A fiber-wrapped aluminum oxygen cylinder may be filled to:

Which of the following should be observed when storing cylinders? I. Post the names of gases being stored. II. Keep empty and full cylinders separate. III. Use chains to secure the cylinders to the wall. IV. Do not store flammable substances with the cylinders.

Upon inspection you note the letter and number combination of 3AA stamped into an oxygen cylinder's shoulder. This means:

Which of the following are true regarding a 3AA "H" size oxygen cylinder? I. The cylinder contains 22 cubic feet when full. II. The cylinder contains 244 cubic feet when full. III. The cylinder may be filled to 2,200 psi. IV. The cylinder may be filled to 3,000 psi.

Which of the following should be observed when withdrawing cylinder contents? I. Leave the cylinder cap in place until you attach a regulator or reducing valve. II. Follow all safety precautions. III. Do not force any threaded connections. IV. Open cylinder valves slowly.

You are working with an outpatient who needs to go home on an "E" cylinder. She is wearing a nasal cannula at 2 L/min, and her cylinder has 1,500 psi remaining. She needs to travel by car one and one-half hours to reach her home and her concentrator. Can she make it?

Which of the following are true regarding a 3AA "E" size oxygen cylinder? I. The cylinder contains 22 cubic feet when full. II. The cylinder contains 244 cubic feet when full. III. The cylinder may be filled to 2,200 psi. IV. The cylinder may be filled to 3,000 psi.

The international color code for oxygen is:

Upon inspection you do not see the letter and number combination of 3AL stamped into an oxygen cylinder's shoulder. This means:

You are setting a patient up on a non-rebreathing mask at a liter flow of 10 L/min. The "H" cylinder you are using reads 1,700 psi. How long will the cylinder last until you need to change it at 500 psi?

Which of the following should be observed when moving an "H" cylinder of oxygen? I. Leave the valve cap on. II. Don't lift the cylinder by its cap. III. Don't slide or drag the cylinder. IV. Don't drop the cylinder.

Which of the following are true regarding a direct-acting cylinder valve? I. It acts directly on the valve seat. II. Turning the valve stem moves a diaphragm. III. It is used on large cylinders (H or K) . IV. It is used on small cylinders (E) .

The diameter index safety system (DISS) : I. uses different pitches and threads per inch II. uses internal and external threads III. is intended for low pressure (< 200 psi) IV. is intended for high pressure (> 200 psi)

Station outlets may consist of: I. Diameter Index Safety System (DISS) fittings II. American Standard Safety System (ASSS) fittings III. quick connect fittings

Which of the following are true regarding a direct-acting cylinder valve? I. It acts directly on the valve seat. II. Turning the valve stem moves a diaphragm. III. It is used on large cylinders (H or K) . IV. It is used on small cylinders (E) .

If a hydrostatic test date has a "+" sign following it:

Most oxygen alarm panels are located:

You need to transport a patient by helicopter to your home base one and one-half hours away. You are using a bag-mask at a liter flow of 15 L/min. How many full "E" cylinders do you need for the transport?

During hydrostatic testing, a cylinder is filled to: