Page 14 of 16
SU14.1-4,SU15.1,SU16.1 | Basic Surgical Skills, Biohazard Disposal and MIS — Graded Quiz
Click any question card to reveal the correct answer.
Which single statement correctly distinguishes sterilization from disinfection?
Correct. Sterilization is the destruction or removal of ALL microbial life, including highly resistant bacterial spores; disinfection removes most pathogens but may not kill spores.
Sterilization kills everything including spores; disinfection does not guarantee spore kill. This drives the Spaulding decision of what level each item needs.
Sterilization = destruction/removal of all microbial life, including resistant spores. Disinfection = removal of most pathogens, but may spare spores. The presence/absence of spore kill is the key distinction.
Click to reveal answer
Which monitoring method is the gold standard for confirming that an autoclave load was truly sterilized?
Correct. The biological indicator (a spore test, classically Geobacillus stearothermophilus for steam) is the gold standard because it proves actual kill of the most resistant organisms.
Biological indicators (spore tests) are the gold standard for sterility assurance because they verify kill of the most resistant microorganisms, not just process conditions.
Mechanical (gauges) and chemical (tape/integrator) indicators support process verification, but the biological indicator — kill of resistant spores — is the definitive proof of sterilization.
Click to reveal answer
A vascular anastomosis requires a suture that retains tensile strength long term and resists bacterial colonisation. Which suture characteristic best matches this requirement?
Correct. A non-absorbable monofilament (e.g. polypropylene) keeps long-term tensile strength for the healing vessel and its smooth single strand resists bacterial harbouring.
Match suture to task across BOTH axes: absorbable vs non-absorbable (duration of hold) and monofilament vs braided (drag/bacterial harbouring). Vessels favour non-absorbable monofilament.
A vascular anastomosis needs durable hold (non-absorbable) and minimal bacterial wicking (monofilament). Absorbable threads lose strength too soon; braided threads can harbour bacteria.
Click to reveal answer
Human anatomical waste and soiled infectious dressings should be segregated at source into which colour-coded category under the BMW Rules 2016?
Correct. Yellow category covers human/animal anatomical waste, soiled infectious waste and expired/discarded medicines, treated chiefly by incineration.
BMW 2016: Yellow (anatomical/soiled infectious → incineration), Red (recyclable contaminated plastic), White (sharps), Blue (glass/metal). Segregate at source, never later.
Yellow = anatomical and soiled infectious waste (incineration). Red = contaminated recyclable plastics; White = sharps; Blue = glass/metallic implants. Anatomical waste is yellow.
Click to reveal answer
Which of the following is a genuine DISADVANTAGE of minimally invasive (laparoscopic) general surgery compared with open surgery?
Correct. MIS reduces pain, scarring and hospital stay, but its disadvantages include loss of direct tactile (haptic) feedback, dependence on equipment/cost, and a significant learning curve.
MIS advantages: less pain, smaller scars, shorter stay, faster recovery. Disadvantages: cost, equipment dependence, learning curve, loss of tactile feedback, and pneumoperitoneum-related effects.
Smaller scars, less pain and shorter stay are ADVANTAGES of MIS. The real disadvantages are loss of tactile feedback, higher equipment cost, longer operating times early in the learning curve, and CO2-related physiological effects.
Click to reveal answer
A scrub nurse hands the surgeon a self-retaining instrument used to hold the wound edges apart and maintain exposure of the operative field. Which functional family of instruments does this belong to?
Correct. Self-retaining retractors hold wound edges apart to maintain exposure; they belong to the retracting family of instruments.
Know the functional families of the basic surgical tray: cutting/dissecting, grasping/holding, haemostatic, and retracting. Function tells you how to hold and use each instrument.
Instruments are grouped by function: cutting/dissecting (scalpel, scissors), grasping/holding (forceps, needle holders), haemostatic clamps (artery forceps), and retractors (which maintain exposure). A self-retaining device that holds wound edges apart is a retractor.
Click to reveal answer