Sutures






Sutures MCQs


Sutures MCQs - Practice & Premium

Q1) True about suturing technique in vascular anastomosis
a) Anastomosis may not be completely water tight
b) To prevent intimal injury needle should be moved from within to out
c) 4-0 suture is preferred for aorta
d) Any biodegradable suture which is monofilament can be used

Vessels should always be sewn with the needle moving from within to without on the downstream edge of the vessel to avoid creating an intimal flap and to fix any atherosclerotic plaque.
Tip of the needle should be at right angle to the intima and curve of the needle should be followed.
Distal clamp is released first. Non-absorbable sutures should be used.
2-0 should be used for aorta, 4-0 for femoral and 6-0 for popliteal. Only non-absorbable monofilament sutures are used in vascular anastomosis.
Bailey 27, page 99

Q2) Lembert suture refers to:
a) Single layer suturing
b) Seromuscular sutures
c) All coat intestinal suturing
d) Skin suturing

Lembert sutures are seromuscular, used in bowel anastomosis to avoid full thickness penetration.

To view the remaining questions and detailed explanations, please join the Premium Surgery Course.

Q4) PDS is absorbed within:
a) 7 days
b) 21 days
c) 100 days
d) 225 days

Ans d

Q5) Surgically used suture material polydioxanone:
a) is non-absorbable and remains encapsulated
b) undergoes hydrolysis and complete absorption
c) undergoes phagocytosis and enzymatic degradation
d) is specifically used for heart valves or synthetic grafts

Ans: b

Q6) Harmonic scalpel frequency of vibration is:
A. 20000–50000
B. 50000–80000
C. 80000–100000
D. >100000

A a – 20K to 50 kHz
Harmonic scalpel cuts through tissues and causes coagulation by protein denaturation caused by vibrating force.
Compared to cautery, harmonic scalpel:
- takes longer time
- produces less smoke
- causes less tissue edema and swelling
Ref: Bailey page 49

Q7) PDS is:
a) Synthetic braided
b) Synthetic monofilament
c) Biological braided
d) Biological monofilament

Ans: b
PDS – Synthetic monofilament
Prolene – Synthetic monofilament
Dexon – Synthetic braided
Polyester – Synthetic braided
Silk – Braided biological

Q8) Nerve least likely to be injured due to prolonged OT time is:
a) Brachial plexus
b) Sural
c) Common peroneal
d) Ulnar

Ans: b) Sural
Anaesthetised patient can be exposed to neuropraxia (nerve injury) which in some cases can be permanent and disabling. These are the brachial plexus, ulnar nerve and common peroneal nerve.
Ref: Bailey page 88

Q9) Langer’s line represent:
a) Dermal collagen fibres
b) Subdermal elastin fibres
c) Dermal elastin fibres
d) Subdermal collagen fibres

Ans: a) Dermal collagen fibres
Represents orientation of the dermal collagen fibres. Incisions placed parallel to these lines result in better scar.
Ref: Bailey page 85

Q10) Distance between sutures should be... of the distance from the edge:
A. Equal
B. Twice
C. Thrice
D. Half

Ans: a) Equal
Rule of thumb: The distance of insertion from the edge should match tissue thickness. Each successive suture should be placed at twice this distance apart.
Ref: Bailey page 91


Be Aware of New Questions & Tests!

We’d love to keep you updated with our latest questions and tests 😎

We don’t spam!