Selection and Preparation of the Surgical Area Flashcards

1
Q

This room should be close, but not adjacent, to the surgery room. The surgical patients are anesthetized and prepared for surgery in this room. The equipment kept in the preparation room will include drugs used for anesthesia and materials needed to prepare the patient. This room should always be clean and tidy

A

Preparation Room

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2
Q

When performing surgeries on rodents, this type of sterilizer may be used in between animals when doing more than one.

A

hot bead sterilizer

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3
Q

options available to sterilize surgical equipment and supplies:

A
  1. Autoclave
  2. Ethylene oxide
  3. Cold sterilant solutions
  4. Hot bead sterilizer
  5. Pre-sterilized items
  6. Implanted Items
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4
Q

Relies on pressurized steam, is extremely reliable, and cost effective. However, instruments must be durable (e.g., stainless steel) and the process is relatively slow, from 15 to 60 minutes. Instruments are typically wrapped or sealed in packs that are opened as needed on the day of surgery

A

Autoclave

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5
Q

Autoclave time requirement

A

15 to 60 minutes

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6
Q

A gaseous sterilant that requires specialized containment equipment.

A

Ethylene oxide

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7
Q
A

Ethylene oxide

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8
Q

This is a good sterilization method for supplies that cannot tolerate high heat such as plastics and catheters.

A

Ethylene oxide

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9
Q

It is more costly than autoclaving and typically is performed overnight

A

Ethylene oxide

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10
Q

Cold sterilant solutions

A

hypochlorite, glutaraldehyde

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11
Q

Cold sterilant solutions contact time

A

15 - 60 minutes

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12
Q

have prolonged contact time (15 - 60 minutes) to sterilize surgical equipment. In addition, the instruments must be rinsed completely with a sterile solution like saline to prevent tissue irritation.

A

Cold sterilant solutions

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13
Q

This device is a small tabletop unit, approximately 6 x 6 x 8 inches. The appliance heats a small container of Pyrex beads to approximately 250 C and can sterilize the tips of metal surgical instruments in 10-20 seconds.

A

Hot bead sterilizer

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14
Q

Hot bead sterilizer contact time

A

10-20 seconds

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15
Q

. It is very useful for sterilizing instruments between rodents when performing surgeries on multiple animals.

A

Hot bead sterilizer

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16
Q

Many instruments and supplies can be purchased in sterilized packaging. Such items must be used prior to the label expiration date.

A

Pre-sterilized items -

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17
Q

Special consideration needs to be made for items that will be implanted (i.e. left in the animal after surgery is completed). Many of these items are “sensitive and/or fragile” and can be difficult to sterilize. Possibilities include use of ultra-short autoclave cycle, ethylene oxide, or use of a cold sterilant. Note: Use of alcohol alone is not a sterilant.

A

Implanted Items

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18
Q

If the surgery is elective the animal should be admitted to the hospital ________ hours prior to the operation

A

24-hours

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19
Q

Food should be withheld on the day of surgery and ______ hours fasting for gastro-intestinal operation.

A

24 hours

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20
Q

Hair should be removed from the surgical site, preferably with electric clippers (# ______ blade) or depilatory rather than a razor.

A

40 blade

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21
Q

Position for surgery in the perineal area (lying on its chest)

A

Sternal recumbency

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22
Q

Position for surgery in the ventral parts of the abdomen (e.g. ventral midline laparotomy)

A

Dorsal recumbency

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23
Q

Position for the surgery of the dorsal parts of the animal (e.g. thoracotomy).

A

Ventral recumbency

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24
Q

Position for the surgery of the right lateral side of the animal.

A

Left lateral recumbency

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25
Q

Position for the surgery of the left lateral side of the animal.

A

Right lateral recumbency

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26
Q

The 4 drapesare held in place by this instrumebnt

A

Backhaus towel clips

26
Q

Recommended Hard Surface Disinfectants

A

Alcohols
Quaternary Ammonium
Chlorine
Glutaraldehydes
Phenolics
Chlorhexidine
Hydrogen peroxide Peracetic acid Acetic acid

27
Q

Recommended Sterilants for Surgical Instruments & Equipment

A

Steam Sterilization (moist heat)
Dry Heat
Gas sterilization
Chlorine
Glutaraldehydes
Hydrogen peroxide Acetic acid
Alcohol

28
Q

Skin Disinfectants

A

Iodophors
Chlorhexidine

29
Q

Wound Closure Selection

A
  1. Polyglactin 910 (Vicryl®), Polyglycolic acid (Dexon®)
  2. Polydiaxanone (PDS®) or, Polyglyconate (Maxon®)
  3. Polypropylene (Prolene®)
  4. Nylon (Ethilon ®)
  5. Silk
  6. Stainless Steel Suture/Wound Clips/Wound Staples
  7. Cyanoacrylate (Vetbond®, Nexaband®, Tissue Mend®)
30
Q

Contact time required is 15 minutes. Contaminated surfaces take longer to disinfect. Remove gross contamination before using.

A

Alcohols
(70% ethyl alcohol85% isopropyl alcohol)

31
Q

Rapidly inactivated by organic matter. Compounds may support growth of gram negative bacteria.

A

Quaternary Ammonium
(Roccal®, Quatricide®)

32
Q

Corrosive. Presence of organic matter reduces activity. Chlorine dioxide must be fresh; kills vegetative organisms within 3 minutes of contact.

A

Chlorine
(Sodium hypochlorite (Clorox ® 10% solution) Chlorine)

33
Q

Rapidly disinfects surfaces.

A

Glutaraldehydes
(Glutaraldehydes (Cidex® Cetylcide®, Cide Wipes®))

34
Q

Less affected by organic material than other disinfectants.

A

Phenolics
(Lysol®, TBQ®)

35
Q

Presence of blood does not interfere with activity. Rapidly bactericidal and persistent. Effective against many viruses.

A

Chlorhexidine
(Nolvasan® , Hibiclens®)

36
Q

Contact time 10 minutes.

A

Hydrogen peroxide Peracetic acid Acetic acid
(Spor Klenz, Virkon®)

37
Q

Effectiveness dependent upon temperature, pressure and time, e.g. 121°C for 15 min vs 131°C for 3 min. Appropriate sterilization indicators should be used to ensure sterility.

A

Steam Sterilization (moist heat)

38
Q

Steam Sterilization (moist heat) required temperature & time

A

121°C for 15 min.
131°C for 3 min.

39
Q

Fast Instruments must be cooled before contacting tissue. Only tips of instruments are sterilized with hot beads.

A

Dry Heat

40
Q

Requires 30% or greater relative humidity for effectiveness against spores. Irritating to tissue; all materials require safe airing time. Appropriate sterilization indicators should be used to ensure sterility.

A

Gas sterilization
(Ethylene Oxide)

41
Q

Corrosive to instruments. Items must be clean and free of organic material. Instruments must be rinsed with sterile saline or sterile water before use.

A

Chlorine
(Sterilant Levels of Chlorine dioxide (Clidox®, Alcide®) Sodium hypochlorite (Clorox® 10% solution))

42
Q

Several hours required for sterilization. Corrosive and irritating. Instruments must be rinsed with sterile saline or sterile water before use. Product expiration dates must be adhered to as per manufacturer’s instructions.

A

Glutaraldehydes
(Glutaraldehyde (Cidex®, Cetylcide®, Metricide®))

43
Q

Several hours required for sterilization. Corrosive and irritating. Instruments must be rinsed with sterile saline or sterile water before use.

A

Hydrogen peroxide Acetic acid
(Actril®, Spor-Klenz®)

44
Q

is neither a sterilant nor a high-level disinfectant.

A

Alcohol
(Ethanol or Isopropanol)

45
Q

Reduced activity in presence of organic matter. Wide range of microbicidal action. Works best in pH 6-7.

A

Iodophors

46
Q

Iodophors works best in what pH level

A

pH 6-7

47
Q

Presence of blood does not interfere with activity. Rapidly bactericidal and persistent. Effective against many viruses. Excellent for use on skin.

A

Chlorhexidine
(Nolvasan®, Hibiclens®)

48
Q

Multifilament, Absorbable in 60-90 days; 25-50% loss of tensile strength in 14-21 days. Ligate or suture subcutaneous tissues where an absorbable suture is desirable. Not routinely recommended for skin closure due to high capillarity.

A

Polyglactin 910 (Vicryl®), Polyglycolic acid (Dexon®)

49
Q

Not routinely recommended for skin closure due to high capillarity

A

Polyglactin 910 (Vicryl®), Polyglycolic acid (Dexon®)

50
Q

Monofilament, Absorbable in 6 months; 40% loss of tensile strength in 30-42 days. Ligate or suture tissues especially where an absorbable suture and extended wound support is desirable.

A

Polydiaxanone (PDS®) or, Polyglyconate (Maxon®)

51
Q

Monofilament, Non-absorbable. Inert.

A

Polypropylene (Prolene®)

52
Q

Monofilament, Non-absorbable. Inert. General closure.

A

Nylon (Ethilon ®)

53
Q

Multifilament, Non-absorbable. (Caution: Tissue reactive and may wick microorganisms into the wound, so silk is not recommended for skin closure). Excellent handling. Preferred for cardiovascular procedures.

A

Silk

54
Q

Non-absorbable. Requires instrument for removal.

A

Stainless Steel Suture/Wound Clips/Wound Staples

55
Q

Skin glue. For non-tension bearing wounds.

A

Cyanoacrylate (Vetbond®, Nexaband®, Tissue Mend®)

56
Q

Multifilament materials in Wound Closure Selection

A
  1. Polyglactin 910 (Vicryl®), Polyglycolic acid (Dexon®)
  2. Silk
57
Q

Absorbable materials in Wound Closure Selection

A
  1. Polyglactin 910 (Vicryl®), Polyglycolic acid (Dexon®)
  2. Polydiaxanone (PDS®) or, Polyglyconate (Maxon®)
58
Q

Non-absorbable materials in Wound Closure Selection

A
  1. Polypropylene (Prolene®)
  2. Nylon (Ethilon ®)
  3. Nylon (Ethilon ®)
  4. Stainless Steel Suture/Wound Clips/Wound Staples
59
Q

used in Steam Sterilization (moist heat)

A

Autoclave

60
Q

used in Dry Heat

A

Hot Bead Sterilizer Dry Chamber

61
Q

used in Gas sterilization

A

Ethylene Oxide

62
Q

The period which an animal recovers from anesthesia may be more critical than during the actual operation.

A

Postoperative Care