Health Department Medical MCQs NTS Past Papers Operation Theatre Technician (OTT) Surgical Technician

Which chemical is used for draping a patient before surgery?

  • Alcohol
  • Spirit
  • Normal Saline
  • Chlorhexidine
  • d
  • Chlorhexidine is an antiseptic used to clean and disinfect the skin before surgery to prevent infection.
    Alcohol / Siprit are antiseptic but usually too irritating for large area or sensitive skin.
    Normal Saline just clean the dust, not an antiseptic.

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Health Department Medical MCQs NTS Past Papers Operation Theatre Technician (OTT) Surgical Technician

Capnography is used to measure:

  • Oxygen
  • Carbon Dioxide
  • Nitrous Oxide
  • Pulse Pressure
  • b
  • Capnography measures the concentration of carbon dioxide (CO₂) in a patient’s exhaled breath, which helps monitor ventilation during anaesthesia or critical care.
    Oxygen is measured by pulse Oximeter.
    Pulse Pressure is measured by Blood Pressure Monitor.

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