CHT CHT Physics & Gas Laws in Hyperbaric Medicine

Question 1

According to Boyle's Law, if pressure in a hyperbaric chamber doubles, the volume of a trapped gas will:

Accepted Answer

Halve

Answer

Double

Answer

Remain unchanged

Answer

Quadruple

Question 2

At 2 ATA breathing 100% oxygen, the partial pressure of oxygen is approximately:

Accepted Answer

1520 mmHg

Answer

760 mmHg

Answer

380 mmHg

Answer

2280 mmHg

Question 3

Henry's Law is most relevant in hyperbaric medicine because it explains:

Accepted Answer

Why more oxygen dissolves in blood at higher pressures

Answer

Why gas volumes decrease under pressure

Answer

Why body temperature affects gas behavior

Answer

Why different gases diffuse at different rates

Question 4

Dalton's Law of Partial Pressures states that:

Accepted Answer

Total pressure equals the sum of partial pressures of each component gas

Answer

Gas volume is inversely proportional to pressure

Answer

Gas volume is directly proportional to temperature

Answer

Dissolved gas is proportional to membrane thickness

Question 5

One atmosphere absolute (1 ATA) is equivalent to approximately:

Accepted Answer

14.7 psi

Answer

29.4 psi

Answer

7.35 psi

Answer

33 psi

Question 6

Every 33 feet of seawater (fsw) of depth adds how much pressure?

Accepted Answer

1 ATA

Answer

0.5 ATA

Answer

2 ATA

Answer

1.5 ATA