CICM SAQ 2010.1 Q22

Questions

22.1. What piece of equipment is shown below? Outline the principle of operation of this equipment.

CICM SAQ 2010.1 Q22 pic 1

 

22.2. The following image shows the connector and a regulator for a Medical Wall Suction outlet.

CICM SAQ 2010.1 Q22 pic 2

(a) What design features of the above equipment prevent it from being connected to the oxygen outlet device?

 

22.3. The image below is an example of a rapid volume infusion device.

CICM SAQ 2010.1 Q22 pic 3

(a) What are the major determinants of fluid flow through this device?

Answers

22.1. What piece of equipment is shown below? Outline the principle of operation of this equipment.

Non-rebreather or partial rebreather oxygen mask

  • Reservoir bag attached to FGF
  • One way valve between reservoir bag and patient which prevent expired gas entering the reservoir bag.
  • Usual FiO2 reached is between 60-90%.
  • Achieving 100% FiO2 is difficult because of valve inefficiency and lack of a tight fit around the face thus entraining room air.

22.2. (a) What design features of the above equipment prevent it from being connected to the oxygen outlet device?

  • Colour coding (oxygen is white, suction is yellow)
  • A unique sleeve index arrangement for each wall gas

22.3. (a) What are the major determinants of fluid flow through this device?

  • Pressure gradient, radius of the catheter raised to the power of 4 (r4) and length of the catheter.
  • As described by the simplified Poiseuilles formula for laminar flow through tube:
    Flow α ∆ρ.r4/l

Pass rate: 86%

CICM Fellowship Short Answer Questions (SAQ)

Print Friendly

Comments