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SimMan Critical Care

Recommended sizes for clinical devices

Device

Recommended Size

Oropharyngeal Airway (OPA)

3

Nasopharyngeal Airway (NPA)

7

Endotracheal Tube and Laryngoscope Blade

7 to 8.5

i-gel Airway

4

King LTS-D/LT-D

4

Combitube

37 Fr (small adult)

Laryngeal Mask Airway (LMA)

4 or 5

Tracheostomy Tube

8 Fr

Airway Suctioning

Rigid Adult Size

Thoracostomy Needle

22 G

Chest Tube

14-28 Fr

IV Catheter

22 G

Urinary Catheter Size

16 Fr

IM Needle

21 G (maximum)

IV Catheter

22 G

Mask (for ventilation)

Laerdal Adult Mask 4 to 5+

Intraosseous (IO) Access

Tibial: BIG Automatic Intraosseous Device, 15 G EZ-IO, 15 G x 1”, 1.8mm x 25mm Jamshidi ® Illinois Bone Marrow Aspiration/Intraosseous Infusion Needle. 18 Ga. 9/16” (14mm)-1 ½” (38mm)  

CAUTION

Incorrect use of larger devices can damage the IO bones and/or internal components.