Sutures Flashcards
Which one of the following is monofilament? A)Vircyrl B)PDS II C)Mersilk D)Supramide
B)PDS II (Polydioxanone) MONOFILAMENT SYNTHETIC NON COATED ONLY MINIMAL ABSORPTION BY 90 DAYS ABSORBED BY 18DAYS BY HYDROLYSIS GOOD FOR INFECTED SITES MINIMAL TISSYE REACTION
Which one of the following is NOT absorbed by hydrolysis? A)PDS II B)DEXON C)CHROMIC CATGUT D)MONOCRYL
C)CHROMIC CATGUT
NATURAL (MADE FROM PURIFIED ANIMAL INTESTINES)
COATED WITH CHROMIUM SALTS
ABSORBED BY ENZMATIC DEGRATION AND PHAGOCYTOSIS
ALWAYS CAUSES A MORDERATE INFLAMMATION RESPONE
Which of the following is permanent? A)POLYGLACTIN 910 B)POLIGLECARPONE C)POLYAMIDE D)PLAIN CATGUT
C)POLYAMIDE (ETHILON) MONOFILAMENT SYNTHETIC NON COATED CAUSES MINIMAL TISSUE REACTION
WHAT IS POLYGLACTIN 910? A)PDS II B)MONOCRYL C)MAXON D)VIRCRYL
D)VIRCRYL MULITIFILAMENT SYNETHIC COATED WITH CALCIUM STERATE ABSORBED BY 60-90DAYS BY HYDROLYSIS LOW TISSUE REACTIVITY USES; SUBCUTICULAR LAYER, MUSCLE, EYES AND HOLLOW VISCERA
WHICH OF THE FOLLOWING IS ABSORBED BY HYDROLYSIS THE QUICKEST? A)CAT GUT B)MAXON C)MONOCRYL D)DEXON
B)MAXON (POLYGLYCONATE)
MONOFILAMENT
SYNTHETIC
COMPLETE ABSORPTION BY 60DAYS
WHICH OF THE FOLLOWING SHOULD NOT BE USED ON INFECTED SITES? A)VICRYL RAPIDE B)PDS II C)MERSILK D)ETHILON
C)MERSILK MULTIFILAMENT NATURAL HAS A WAX COAT HIGH TISUE REACTIVITY NOT TO BE USED IN INFECTED SITES
WHICH ONE OF THE FOLLOWING IS COATED IN CALCIUM STEARATE? A)PDS II B)VICRYL C)MONOCRYL D)MAXON
B)VICRYL
WHICH OF THE FOLLOWING IS NOT MULTIFILAMENT? A)POLYGLACTIN B)POLYDIOXANONE C)POLYGLYCOLIC D)NURALON
B)POLYDIOXANONE (PDS II)
List 5 ways in which suture materials are categorise
Absorbable or non-absorbable Natural or man made Braided or monofilament Coated or plain Swaged needle or with no needle attached
List 4 examples of absorbable suture materials
Catgut Polydioxanone PDS Polyglactin 910 VICRYL Polyconate MAXON Polyglycolic acid DEXON
Why is chromic catgut treated with chromium salts?
In order to slow down the rate of breakdown in the body and therefore improves strength of suture
In addition to catgut, name 2 other natural suture materials
Linen
Silk
List 4 examples of non-absorbable suture materials
Polyamide ETHILON
Polybutylester NOVAFIL
Polypropylene PROLENE
Silk
List 3 examples of coated suture materials
Chromic catgut
Ethibond
Vicryl
List 3 examples of braided suture materials
Dexon
Stainless steel
Vicryl
List 4 examples of monofilament suture materials
Catgut
Nylomide/Supramide
PDS
Prolene
How are suture materials usually sterilised?
By gamma irradiation of ethylene oxide
List 4 factors to be taken into account when choosing a suture material
Capillarity Knot strength/security Tensile strength Tissue drag Cost Tissue reaction
For what purpose might you use Polydioxanone, Polyglactin 910 or Polyglycolic acid?
Suture of the subcutis
A material suitable for suturing muscle
PDS
Suggest 4 suitable uses for Polypropylene (prolene)
Suturing of a hollow viscus
The suturing of tendons
The suturing of blood vessels
The suturing of nerves
How are suture needles classified?
By type eg. Round bodied, conventional cutting, reverse cutting
By shape eg.straight, 1/4 straight, 3/8 circle, 5/8 circle, bald curved, J needle, compound curve
Describe a reverse cutting needle
This needle has its cutting edge on the outside of its curvature in order to improve its strength and resistance of bending
What is the main advantage of a taper cut needle?
This combines the initial penetration of a cutting needle with the minimised trauma of a round bodied needle
When might the use of a trocar point needle be indicated?
When powerful penetration of deep, dense tissue is required
When might the use of a micro point needle be indicated?
Ophthalmic surgery
Name the suture pattern most likely to lead to complete wound breakdown
Simple continuous
When might the use of simple interrupted sutures be indicated?
As a buried suture when the suture ends should be cut short
For skin closure
What site patterns are ideal for the closure of skin wounds under moderate tension?
Horizontal or vertical mattress
What is another name for a Swaged needle?
Atraumatic
You are asked to remove the sutures from a bitch 10DAYS following Ovariohysterectomy. The wound appears closed but is quite red and sore as a result of her licking. What would you recommend?
Assess vital signs including hydration status and CRT to rule out internal haemorrhage
Remove alternate sutures in case of wound breakdown and re-examine the bitch in 3-5days to reassess
Prevent further patient interference by providing an Elizabethan collar
Advise salt-water bathing twice daily to ensure that the wound is kept clean
Give 3 alternatives to sutures
Staples
Tissue glue
Adhesive tapes
