IAHCSMM Surgical Instrument Identification & Care 2

Question 1

What material is most commonly used in the manufacturing of surgical instruments?

Accepted Answer

Stainless steel (typically 300 and 400 series)

Answer

300-series stainless steel (corrosion-resistant) and 400-series (hardened for cutting edges) are the most common surgical instrument materials.

Question 2

What is the purpose of passivation of stainless steel instruments?

Accepted Answer

To create a protective chromium oxide layer that resists corrosion

Answer

Passivation forms a chromium oxide layer on stainless steel surfaces, protecting against corrosion and staining during reprocessing.

Question 3

What type of forceps has platform tips used to grasp delicate tissue without crushing?

Accepted Answer

DeBakey forceps

Answer

DeBakey forceps have a multi-row serrated platform tip that grips tissue securely with minimal trauma, commonly used in vascular and cardiovascular surgery.

Question 4

Why should dissimilar metals never be combined in the same sterilization load?

Accepted Answer

Galvanic corrosion can occur when dissimilar metals contact each other in steam sterilization

Answer

When dissimilar metals are in contact in the presence of moisture and heat, galvanic corrosion can occur, damaging instrument surfaces and reducing lifespan.

Question 5

What is the function of a 'ratchet' on locking surgical instruments such as clamps?

Accepted Answer

To lock the instrument at a set clamping pressure without requiring continuous hand pressure

Answer

The ratchet mechanism locks locking instruments (clamps, needle holders) at a set position, allowing the surgeon to release hand pressure while maintaining grip.

IAHCSMM - International Association of Healthcare Central Service Materiel Management Practice Test

IAHCSMM - International Association of Healthcare Central Service Materiel Management Practice Test

IAHCSMM Surgical Instrument Identification & Care 2