DIPLOMA IN OTTM – 50 MCQs
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| operation theatre technology MCQs |
Anatomy & Physiology
-
The largest organ in the human body is:
A) Liver
B) Skin
C) Brain
D) Lungs -
The functional unit of the kidney is:
A) Nephron
B) Alveolus
C) Glomerulus
D) Bowman’s capsule -
Which artery supplies the heart muscle?
A) Pulmonary artery
B) Coronary artery
C) Carotid artery
D) Subclavian artery -
The normal range of adult respiratory rate is:
A) 8–10/min
B) 12–20/min
C) 22–28/min
D) 30–40/min -
Which cranial nerve controls the diaphragm?
A) Vagus nerve
B) Phrenic nerve
C) Hypoglossal nerve
D) Trigeminal nerve -
The total number of bones in adult human body is:
A) 204
B) 206
C) 208
D) 210 -
The largest gland in the human body is:
A) Pancreas
B) Liver
C) Thyroid
D) Adrenal -
Gas exchange occurs in:
A) Trachea
B) Bronchi
C) Alveoli
D) Pleura -
The hormone insulin is secreted by:
A) Adrenal cortex
B) Pancreas (Islets of Langerhans)
C) Pituitary
D) Thyroid -
Which part of the brain controls balance and coordination?
A) Cerebrum
B) Cerebellum
C) Medulla
D) Pons
Microbiology & Infection Control
-
Autoclaving is done at:
A) 100°C for 15 min
B) 121°C for 15 min at 15 psi
C) 134°C for 5 min at 30 psi
D) 160°C for 1 hour -
Bacteria are best stained by:
A) Gram stain
B) Ziehl-Neelsen stain
C) Wright’s stain
D) Leishman stain -
The causative organism of gas gangrene is:
A) Staphylococcus aureus
B) Clostridium perfringens
C) Streptococcus pyogenes
D) Pseudomonas aeruginosa -
The universal precaution includes all EXCEPT:
A) Wearing gloves
B) Recapping needles
C) Mask use
D) Handwashing -
The most effective disinfectant for HIV virus is:
A) Phenol
B) Alcohol
C) Sodium hypochlorite
D) Lysol -
The ideal temperature for storing blood is:
A) 0°C
B) 1–6°C
C) 10°C
D) Room temperature -
Asepsis means:
A) Presence of microorganisms
B) Absence of pathogenic microorganisms
C) Infection
D) Sterility failure -
The process of killing all microorganisms including spores is:
A) Disinfection
B) Sterilization
C) Pasteurization
D) Antisepsis -
Which of the following is a spore-forming bacteria?
A) E. coli
B) Clostridium
C) Klebsiella
D) Neisseria -
The standard concentration of formalin used for fumigation is:
A) 20%
B) 30%
C) 40%
D) 10%
OT Techniques & Sterilization
-
The sterile area in OT includes:
A) Scrub area
B) Operation table
C) Corridor
D) Changing room -
Ethylene oxide sterilization is used for:
A) Linen
B) Rubber and plastic items
C) Glassware
D) Instruments -
Instruments are arranged on:
A) Mayo table
B) Instrument trolley
C) Both A and B
D) Floor table -
The position used for perineal surgeries is:
A) Supine
B) Lithotomy
C) Trendelenburg
D) Prone -
The function of suction machine in OT is:
A) To provide oxygen
B) To remove blood and secretions
C) To monitor BP
D) To sterilize instruments -
The blue zone in OT indicates:
A) Clean area
B) Sterile zone
C) Dirty area
D) Store -
Drapes used in surgery should be:
A) Waterproof
B) Cotton
C) Plastic
D) Wool -
The ideal air pressure in OT is:
A) Positive pressure
B) Negative pressure
C) Neutral
D) Variable -
The most important step before scrubbing is:
A) Wearing gown
B) Wearing mask and cap
C) Touching sterile field
D) None -
Scrubbing time for hands is:
A) 30 seconds
B) 1 minute
C) 3–5 minutes
D) 10 minutes
Anaesthesia & Surgery Basics
-
Local anesthesia acts by:
A) Blocking motor nerves
B) Blocking sensory nerves
C) Depressing CNS
D) Inducing sleep -
Spinal anesthesia is given at the level of:
A) L1–L2
B) L3–L4
C) T10–T11
D) L5–S1 -
The color of oxygen cylinder is:
A) Black with white shoulder
B) Blue
C) Black with green shoulder
D) Green -
The anesthetic agent causing malignant hyperthermia is:
A) Halothane
B) Ether
C) Succinylcholine
D) Nitrous oxide -
The antidote for morphine overdose is:
A) Naloxone
B) Atropine
C) Neostigmine
D) Diazepam -
The commonest complication of spinal anesthesia is:
A) Vomiting
B) Headache
C) Fever
D) Infection -
Pulse oximeter measures:
A) Blood pressure
B) Heart rate
C) Oxygen saturation
D) CO₂ level -
The color code for nitrous oxide cylinder is:
A) Black with white shoulder
B) Blue
C) White
D) Green -
Minimum alveolar concentration (MAC) is related to:
A) Potency of inhaled anesthetic
B) Toxicity
C) Cost
D) Blood solubility -
The safest muscle relaxant in renal failure is:
A) Vecuronium
B) Pancuronium
C) Atracurium
D) Rocuronium
Surgical Instruments & Procedures
-
Mosquito forceps are used for:
A) Holding skin
B) Clamping small blood vessels
C) Cutting sutures
D) Grasping tissue -
The instrument used to hold bowel is:
A) Allis forceps
B) Babcock forceps
C) Kocher forceps
D) Artery forceps -
The suture material absorbed by the body is:
A) Silk
B) Catgut
C) Nylon
D) Prolene -
The size of needle used for IM injection in adult is:
A) 18G
B) 20G
C) 21G
D) 23G -
The normal adult blood volume is approximately:
A) 2 L
B) 3 L
C) 5 L
D) 7 L -
The instrument used to retract abdominal wall is:
A) Langenbeck retractor
B) Balfour retractor
C) Doyen retractor
D) Volkmann retractor -
“Swab count” is done to prevent:
A) Hypotension
B) Retained foreign body
C) Hypoxia
D) Bleeding -
Surgical asepsis is maintained by:
A) Sterile gloves
B) Clean apron
C) Hand wash only
D) Changing shoes -
The first step in wound management is:
A) Suturing
B) Cleaning and debridement
C) Dressing
D) Bandaging -
Postoperative infection usually occurs within:
A) 6 hours
B) 24 hours
C) 48–72 hours
D) 1 week
ANSWER KEY (1–50)
1–B
2–A
3–B
4–B
5–B
6–B
7–B
8–C
9–B
10–B
11–B
12–A
13–B
14–B
15–C
16–B
17–B
18–B
19–B
20–C
21–B
22–B
23–C
24–B
25–B
26–B
27–A
28–A
29–B
30–C
31–B
32–B
33–A
34–C
35–A
36–B
37–C
38–B
39–A
40–C
41–B
42–B
43–B
44–C
45–C
46–B
47–B
48–A
49–B
50–C
