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CT Scanner Tube Overheating

By MedBazaar Technical Team · Troubleshooting Guide

مسئلہ / Problem

CT scanner X-ray tube overheating warning ya "Tube Heat" error aata hai — scanner pause ya shutdown karta hai.

ممکنہ وجوہات / Possible Causes

  • Heavy scan load (multiple patients rapidly)
  • Cooling system failure
  • High mAs protocols repeatedly used
  • Ambient temperature high

    • تشخیص / Diagnosis Steps

  • Scan volume: kitne scans recently kiye — tube heat unit (HU) check karein
  • Room temperature check karein — AC properly working hai
  • Cooling system sounds normal hain (fans, chiller)
  • Tube heat units display par check karein

    • حل / Fix

    Immediate:

  • Scanning pause karein — mandatory cool down period
  • AC check karein — room temperature 18-22°C honi chahiye
  • Scanner room ventilation check karein

    • Operational:

  • Scan scheduling spacing barhaein — back to back heavy protocols avoid karein
  • Protocol optimization: mAs reduce kiya ja sakta hai (radiologist se consult)
  • Tube HU monitor karein — 80% se upar caution, 95%+ automatic pause

    • Cooling System:

  • Fan filter clean karein (engineer + user)
  • Chiller water level check (engineer)
  • Coolant leak check (engineer)

    • اہم نوٹ

    CT tube Pakistan mein PKR 30-80 lakh ki hoti hai — overheating se tube life significantly reduce hoti hai. Proper protocols follow karna financially critical hai.

    Estimated Fix Time: Cool down: 30-60 min. Cooling system repair: engineer required

    Difficulty: Intermediate (protocols) / Advanced (hardware)

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