Surgical Instrument Care Flashcards

0
Q

What can spotting, staining and corrosion do

A

Impaired function of surgical instruments, interfere with sterilization, shortening instrument life

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1
Q

Why is proper surgical instrument care important

A

Patient safety, longevity of instruments

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2
Q

How does spotting staining and corrosion impair function of surgical instruments

A

Rust in box lock area impair opening of instruments. Rusted scissor blades become doll

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3
Q

How can spotting staining and corrosion interfere with sterilization

A

Spores are protected from distruction by layers of iron oxide

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4
Q

Describe characteristics of spots on surgical instruments

A

Loose or semi adherent deposits on instruments surface. Usually wiped off with a cloth with minimal friction. Don’t physically or chemically effect instruments if they are removed

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5
Q

What can cause spots on surgical instruments

A

Mineral water deposits, chemical residues, steam residue, poor soil removal

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6
Q

Give some general characteristics of stains on surgical instruments

A

Tightly adhered deposits on instrument surface, can be an integral part of the surface, don’t physically or chemically effect instruments if they removed

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7
Q

What can cause stains on surgical instruments

A

Replating of metals, impure steam

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8
Q

What are surgical residues and what do they cause

A

Blood, tissue, pus. Contain chloride ions that cause corrosion. Primary cause of pitting, staining and discoloration of surgical instruments

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9
Q

How do you resolve surgical residues

A

Clean and dry instruments immediately after surgery, open hinged instruments

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10
Q

What can cause corrosion

A

Tapwater, harsh cleaners, residual detergent on surgery drapes

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11
Q

How can you test for rust

A

Taking an eraser and if there’s a pit mark under the stain then it is rust

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12
Q

What does an orange brown stain usually mean

A

Phosphate deposit. Caused by autoclave water, dirty autoclave, bleach, surgical wrappings

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13
Q

What does a dark brown stain mean

A

Caused by dry blood missed at cleaning stage, acidic solutions

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14
Q

What is a bluish black stains caused by

A

Plating which is contact between dissimilar metals

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15
Q

What is a multicolor or rainbow color caused by

A

Excessive heat during autoclaving

16
Q

What are the steps for basic cleaning

A

Presoaking, manual cleaning, ultrasonic cleaning, inspection and repair, lubrication

17
Q

What is Sterility

A

State of being free of viable micro organisms

18
Q

What is sterilization

A

Process of killing micro organisms that remain on a clean instrument

19
Q

What are four important conditions for the autoclave

A

Adequate contact between steam and micro organisms, sufficient moisture, exposure to temperatures lethal to heat resistant micro organisms, adequate time

20
Q

What are four important parameters for ethylene oxide gas sterilization

A

Concentration of gas, exposure time, temperature, relative humidity