Intro to Hx Taking, Pre op Eval, Lab Testing & Chart Review Flashcards
components of the pre op evaluation
- detailed pt hx (chart review + hx taking) - ROS
- physical and airway exam
- medications/allergies
- lab testing/diagnostic testing
- previous surgeries
- medical consultation (if indicated)
- ASA status
- NPO status (fasting status and aspiration risk)
- anesthetic plan
- discussion of plan (educate and decrease anxiety)
- informed consent
Where is the pre op eval performed?
presurgical testing centers (early testing)
hospitals
- OR settings (holding)
- critical care units
- specialty departments
outpatient centers
Pre op eval clinics:
1 week prior to surgery
- pt interview
- physical exam
- medical records to be acquired and collated
- promotes pt teaching and anxiety reduction
- allows time to schedule appts with medical consultants and complete required pre operative diagnostic testing/interventions
- abnormalities addressed immediately
- obtain informed consent prior to operative day
Early pre op assessment: populations that would benefit
Includes, but not limited to:
- angina, CHF, MI, CAD, poorly controlled HTN
- COPD/severe asthma, airway abnormalities, home 02 or ventilation
- IDDM, adrenal disease, active thyroid disease
- liver disease, ESRD
- morbid obesity, symptomatic GERD
- severe kyphosis, spinal cord injury
Chart Review:
- demographics - name, age, sex
- diagnosis/procedure
- surgical consent
- prior H&P (from surgeon or internist)
- prior anesthetics records
- nursing notes
- patient questionnaire
- results of lab tests
- EKG, PFTs, XRay, etc.
- vital signs (when)
- medication list
- allergies
Past Anesthetic Hx
Complications
- difficult airway
- slow wake up
- MH
family history complications
-MH
Obstetrical deliveries
Physical exam: components
- general assessment: appearance
- disposition
- cognition/mental status
- record of VS/day of
- airway exam
- auscultation - CV/Pulm
- neuro exam
- peripheral veins
- examine site for RA (regional anesthesia)
- examine surgical site
- AICD/pacemaker (other)
Physical Exam: Airway
anesthesia perspective - most important aspect of physical exam
- mallampati score
- dentition
- neck mobility (ROM, how far can lift your chin?)
- neck circumference
- neck length
- thyromental distance
- mandibular protrusion (bite your upper lip)
- mouth opening (mallampati, fingerbreadth test)
- pertinent deformities (ROM, radiation, tumors, head and neck sx)
- airway pathology
- facial hair
- past surgical hx
Difficult mask ventilation
- age >55
- OSA/snoring
- edentulous
- facial hair
- BMI>26
- neck circumference
- Mallampati 3 or 4
Difficult DL
- h/o difficult airway
- OSA
- congenital abnormaliies
- obesity
- cervical spine dx
- non reassuring airway exam findings
Physical Exam: CV
VS (rate, rhythm, BP)
Auscultation (murmurs, abnormal heart tones, carotid bruits)
Inspection
- peripheral pulses (consider sick pt or if need for a line)
- IV access (consider access and if need for central line)
- JVD
- peripheral edema
Physical Exam: Resp
VS (RR, spo2)
Auscultation (wheezing, dec breath sounds, abn breath sounds)
Inspection (cyanosis, clubbing, accessory muscle use, resp effort, res pattern)
need for post op CPAP or vent support??
Physical Exam: Neuro/MS
motor - gait, grip strength, ROM, ability to hold arms forward, etc
sensory - distinction of vibration, pain, light touch along dermatomes
muscle reflexes
cranial nerve abnormalities
mental status
speech
surgical positioning - limitations
Exercise Tolerance: purpose
cardiopulm fitness or functional capacity
predictor or cardiac risk & need for further testing
quantified by METs - estimated energy requirement for various activities (metabolic equivalents)
1 MET - 3 MET: activity
self care
eating, dressing, or using the toilet
walking indoors and around the house
walking one to two blocks on level ground at 2 to 3 mph
4 MET - 9 MET: activity
light housework (dusting, washing dishes)
climbing a flight of stairs or walking up a hill
walking on level ground at 4mph
running a short distance
heavy housework (scrubbing floors, moving heavy furniture)
moderate recreational activities (golf, dancing, doubles tennis, throwing a baseball or football)
> 10 METs
strenuous sports
Johns Hopkins Surgery Risk Classification System: Category 1
minimal risk
minimally invasive
little or no blood loss
still consider that SURGICAL RISK may be minimal, but overall risk could be high