CSSD Water Treatment & Sterilization Quality Tests

Fill-in-the-blank flashcards covering water treatment, quality tests, instrument inspection, biological & chemical indicators, and PPE in the CSSD.

_ (RO) is the water purification method used to supply all water in the CSSD.

Reverse osmosis

Treated, distilled water prevents __ of salts and residues inside sterilizers.

deposition / precipitation

During a water hardness test, if the sample turns blue it is considered .

soft

During a water hardness test, a red or brown colour indicates the water is __.

non-soft / hard

After detecting hard water, the technician must immediately inform the _ responsible for repair.

engineer

Water treatment in the CSSD passes through _ sequential filters.

three (3)

The first filter removes large particles by using small _ inside the tank.

stones / pebbles

The second filter contains resin that binds magnesium and potassium ions.

ion-exchange

The third filter removes excess ions before osmosis.

sodium

An acceptable salt (TDS) level of 0–1 requires testing on a basis.

weekly

If the salt level exceeds 3, the department’s work must be .

stopped

The TDS meter must show turbidity of no more than ____.

50 (ppm/NTU)

Chlorine in treated water must be between ppm.

1–1.5

Water pH should remain between to ensure safe use.

7.2–7.6

The test performed with an empty autoclave to check chamber integrity is called the test.

leak

A failed leak test usually indicates a problem with the autoclave’s or temperature retention.

pressure / vacuum

The Bowie-Dick test checks for adequate removal and steam penetration.

air

A correct Bowie-Dick result shows the indicator sheet uniformly _.

black

Internal chemical indicators are placed every pack or tray before sterilization.

inside

External chemical indicator _ are applied to the outside of packages.

tapes

The washer-disinfector performance is verified with the _ test strip.

TOSI

After a washer load, the TOSI strip must be completely free of simulated .

blood / soil

Visual inspection of instruments is aided by a glass to detect residue.

magnifying

Functional testing of scissors is done by cutting a piece of .

cotton / glove

Ratchet instruments are checked by locking them on the first tooth and striking them times.

three

Protein residue on manually cleaned instruments is detected using a test.

protein

Steam biological indicators contain spores of stearothermophilus.

Geobacillus

Ethylene oxide biological indicators use spores of atrophaeus.

Bacillus

Personal protective equipment must be donned starting with the gown and mask, and removed beginning with the covers.

shoe

Utility gloves used during EtO handling are made of heavy material such as to resist irritation.

cotton