Examkin

Question

Difficulty: MediumDirect Fact Retrieval

Field medical sterilization units utilize pressurized saturated steam to decontaminate surgical instruments in forward operating environments. To achieve full microbial sterilization, the internal chamber must maintain a temperature of 134 ∘C134\text{ }^\circ\text{C} at a gauge pressure of 2.1 bar2.1\text{ bar} for a minimum cycle duration of five minutes. If instruments are wrapped in double-layer barrier cloth rather than open perforated trays, operators must extend the exposure time to eight minutes while maintaining identical temperature and pressure. Instruments must remain in the chamber until the exhaust vent cycle drops chamber pressure below 0.2 bar0.2\text{ bar} to prevent gasket blowout.

According to the passage, what is the required cycle duration when sterilizing surgical instruments wrapped in double-layer barrier cloth?

  1. A
    Five minutes
  2. B
    Two minutes
  3. Eight minutesAnswer
  4. D
    Fifteen minutes

Answer

Eight minutes
The passage explicitly states that when instruments are wrapped in double-layer barrier cloth rather than open perforated trays, operators must extend the exposure time to eight minutes.

Step-by-Step Solution

1
Identify the specific condition queried in the stem
The target condition is instruments wrapped in double-layer barrier cloth.
Locating the exact condition ensures the correct factual parameter is retrieved.
2
Scan the passage for the sentence addressing double-layer barrier cloth
Found: 'If instruments are wrapped in double-layer barrier cloth rather than open perforated trays, operators must extend the exposure time to eight minutes...'
Direct fact retrieval requires locating the literal statement in the text.
3
Extract the explicit duration stated for this condition
The required duration is eight minutes.
Demonstrates accurate retrieval without confusion from alternate numbers mentioned.

Key Concept

Direct Fact Retrieval from Technical Text
Estimated Time:50s
Rate this question

Topics

Direct Fact Retrieval

More questions from this topic