Part 32 Flashcards
Why operate on a patient generally? (5)
- Preferred treatment for condition
- only other treatment option rather than comfort care
- palliative surgical intervention
- elective treatment
- weighing out the benefits vs the risks
Steps of the surgical process (7)
- Preop eval H&P
- Immediate perioperative period (pre-op holding, not sterile) prep by anesthesiologist
- transfer to operating theatre and OR table, anethesia begins
- patient prep once intubated (foley, cautery pad, chloraprep and 3 min drying period)
- scrub in and draping
- operation
- post op move patient to PACU (post anesthesia care unit) or ICU if severely ill, eventually back to holding area (write post op note and orders, complete post op check within 4 hours and record day of surgery (DOS), post op day 1, 2, etc (POD) as part of daily rounds)
Maintenance fluid therapy 4,2,1 rule
- first 10 kg give 4ml/kg/hr (40ml/hr)
- second 10kg give 2ml/kg/hr (20ml/hr)
- remainder give 1ml/kg/hr (xml/hr)
-Add these 3 for total ml per hour
IV solution type used most often in surgery
Lactated Ringers
Most common type of drain to be left in a patient post op for drainage
Jackson Pratt and Blake drains
Patient expectations about a surgery
Importance of educating patient providing accurate info before procedure regarding process, risk benefit, complications, etc and give them realistic expectations regarding pain and of course obtain consent
General basic labs in preop eval H&P (5)
- CBC
- nutritional status (albumin)
- chemistry panel
- blood type
- coags
“Toeing in”
Tipping the angle of the retractor more vertical or sharply to allow a surgeon to manipulate the retracted tissue and stretch it out of the way
Procedure Note
Completed by operator for bedside procedure including PAs
Operative note
Completed by attending surgeon for an operation they complete, NOT a PA
Nasogastric (NG) tubes
PVC, polyurethane, or silicone flexible tube inserted thru the nose with the end terminating at the stomach, a salem sump tube is most commonly used for decompression (additional lumen tube for decompression of the stomach or blowing off the wall)
NG tube indications (2)
- treat ileus or small bowel obstruction with decompression (removal of contents of GI which is a good measure of how severe a small bowel obstruction is)
- enteral nutrition and administer medications short term in patients who cannot swallow
NG tube contraindications (5)
- esophageal stricture
- esophageal varices or diverticuli
- basilar skull fracture
- prophylactic placement is NOT done (such as after bariatric surgery)
- long term enteral nutrition
Placement of an NG tube steps
- gather supplies
- measure estimated length based on zyphoid to earlobe and earlobe to nares
- have patient positioned sitting up chin to chest
- insert tube horizontally
- have patient sip on water as NG tube is advanced
- ensure patient can speak
- tape in place
- connect to suction
- confirm placement thru aspiration of contents/simultaneous auscultation or abdominal x ray
NG tube complications (4)
- coiling
- reflux
- cribiform plate perforation
- pneumonia or tracheal perforation
Orogastric tube (OG)
Same idea as a nasogastric tube but thru the mouth in intubated patients, eliminates worry for nasal ulcerations, sinusitis, etc
When is a post pyloric feeding tube utilized? What 2 complications occur with it?
-When there is concern for aspiration (A simple NG tube can cause reflux into the esophagus), concerns over difficulty in placement and causing “dumping syndrome”
Long term enteric feeding options
If greater than 2 weeks, may refer to
-Percuaneous endoscopi gastrostomy/jejunostomy (PEG/PEJ) or a PEG-J which is both
What to do if a long term enteric feeding tube falls out
- courtesy call to surgeon who placed it for instruction first and foremost
- if well healed around it (well formed tract) can often just return PEG tube manually, but dangerous if new and cannot replace PEJ manually
Venting PEGs
Indications for a PEG tube in palliative care where a patient who has a distal obstruction and is terminal can continue to eat and suck out the contents as needed
Indications for a drain
Prevent accumulation of fluid (blood, pus, and infected fluids) as well as air
Open drain (penrose)
A type of drain that is open type with passive pressure simply to keep the skin open, drainage usually occurs around the tube not necessarily thru it
Closed drain
Can utilize active or passive pressure
Clean wounds
Uninfected operative wounds in which no inflammation is encountered and the wound is closed primarily, the respiratory, alimentary, genital, and urinary tracts do not qualify
Clean contaminated wound
Operative wounds in which a viscus is entered under controlled conditions and without unusual contamination
Contaminated wounds
Open, fresh, accidental wounds, operations with major breaks in sterile technique, or gross spillage from a viscus, wounds in which acute, nonpurulent inflammation was encountered as well
Dirty wounds
Old traumatic wounds with retained vitalized tissue, foreign bodies, or fecal contamination or wounds that involve existing clinical infection or perforated viscus
Nichols prep
Given a day before surgery, includes 4 components (polyethylene glycol, neomycin, azithromycin base, and metronidazole) to clean bowel before surgery
Operative techniques as infection prophylaxis after sedation but before operating (7)
- eliminate hair (trim don’t shave)
- effective skin prep and wait for it to dry (betadine or chlorohexadine)
- gentle tissue handling
- effective hemostasis
- eradicate dead space (possibility of becoming infected)
- operative time less than 2 hours
- closed suction drainage remote from incision
Postoperative fever
Low grade (100-101) fever that occurs after surgery, if develops 24 hrs after then atalectasis (try incentive spirometry), if next 48 hours then think UTI, if days 3-4 think wound infection, if day 5 DVT, and anything after that can be due to a drug fever
(wind, water, wound, walking, wonder drugs)
ASA classification of physical status in eval and prep for anesthesia and surgery
-ASA class 1 - no disturbance of any kind
-ASA class 2 - mild to moderate disturbance that may or may not be related to reason for surgery
-ASA class 3 - severe systemic disturbance that may or may not be related to reason for surgery, does limit activity
-ASA class 4 - severe systemic disturbance that is life threatening with or without surgery
-ASA class 5 - patient who has little chance at survival but is submitted to surgery as last resuscitative resort
-ASA class 6 - organ donation in declared brain dead patient
E - adding an E status to any of the above designates an emergency operation
High risk procedures (>5% cardiac complication rate) (2)
- emergency surgery
- prolonged surgeries with large fluid shift or blood loss
Medium risk procedures (1-5% cardiac complication rate) (3)
- neurosurgery
- abdominal or thoracic surgery
- minor vascular surgery
Low risk procedures (<1% cardiac complication rate) (3)
- breast surgery
- endoscopic procedures
- eye surgery
Example of a passive drain, example of an active drain
- Pentrose drain
- Jackson pratt drain (has grenade to squeeze for negative pressure to draw out material)
Pulmonary toilet
Encouragement of patients to take deep breaths, cough, and be elevated after surgery in order to increase clearing of secretions
Post op red flags (5)
- tachycardia
- hypotension
- tachypnea
- decreased urine output
- mental status changes
Minimum urine output we want to see in a patient
.5 cc/kg/hr
BUN/creatinine ratio and determination if prerenal, normal or post renal, or intrarenal
> 20 prerenal
10-20 normal or post renal
<10 intrarenal
Enhanced recovery after surgery (ERAS)
Program proven to decrease length of stay and complications in patients that begins before surgery thru pre op optimization (nutritional support, smoking cessation at least 6-8 weeks before, decrease alcohol consumption), intra op considerations (maintain euvolemia and can have liquids up to 2 hours before surgery, avoidance of systemic narcotics), post op care (early feeding, mobilization, multi modal pain management NOT just narcotics)
Pulmonary complications are responsible for up to 25% of deaths within 6 days of ____
surgery
Preop pulmonary function tests
Indicated only in patients with high risk for complication, allows for prophylactic treatment to decrease complication risk
5 elements of preop regimen
- Stopping smoking 4-8 weeks before surgery
- Dilate airways (B2 agonsits, ipratropirum bromide, inhaled steroids)
- Loosen secretions (airway humidifcation, mucolytic and expectorant drugs, chest physiotherapy)
- Adjunct medication (antibiotics or antacids)
- increase education, motivation, and facilitation of post op care
Nicotine use effects on surgical patients (2)
- Nicotine induced tachycardia
- vascoconstriction resulting in impaired wound healing
Incentive spirometer
Device with tube that placed in mouth and sucked in helps expand lungs and open airways and alveoli to prevent atelectasis and pneumonia often in post op patients
Atelectasis sequalae
-Pneumonia
Appropriate post op pain management in thoracic surgeries which tend to be very painful and result in patients decreasing their deep breathing (3)
- thoracic epidural
- intrapleural caths
- rib blocks