Assessments Unit 1 Flashcards
What percentage of a diagnosis can be correctly determined from a patient history alone?
56%
What constitutes a medical history exam?
Underlying condition requiring surgery, medical history/problems, previous surgeries/anesthetic history, anesthetic complications, ROS, current meds, allergies, tobacco/ETOH/illicit drug use, functional capacity
What 4 things are BMI used to calculate (per powerpoint slide)?
1 - estimate/calculate drug dosages
2 - determine fluid volume requirement
3 - calculate acceptable blood loss
4 - adequacy of urine output
What is important to establish from a focused physical exam?
The patients baseline (neuro, CV, respiratory etc) in all systems
What acronym is used for an emergent physical exam? In an emergency if you can only pick 2, which do you pick?
A - allergies
M - medication
P - PMH
L - last meal
E - events leading up to surgery
Emergency pick 2 = allergies and PMH
What accounts for almost half of perioperative mortalities?
Problems with the CV system
What is a G6PD deficiency?
The body lacks that enzyme, which the lack of causes hemolytic anemia. RBCs break down faster than they are made in response to stress
What court case established informed consent? Outcome of the surgery?
Salgo v Leland Stanford Jr. University Board of Trustees. An aortogram left the pt paralyzed
What surgeries carry a high mortality risk (>5%)? Intermediate (1 - 5 %) or low (<1%)?
High = aortic and major vascular surgery
Intermediate = Intra-abdominal or intrathoracic surgery, carotid endarterectomy, head/neck surgery
Low = ambulatory, breast, endoscopic, cataract, skin, urologic, orthopedic
What is the goal of METs?
greater than 4
Define emergency, urgent and time-sensitive surgeries
Emergent = life or limb would be threatened if surgery did not proceed within 6 hours
Urgent = life or limb would be threatened if surgery did not proceed within 6 - 24 hours
Time-sensitive = delays exceeding 1 - 6 weeks would adversely affect patient outcomes
Describe ASA physical status grading I - VI
I = healthy, non-smoking, minimal ETOH
II = Mild disease only w/o substantive functional limitations. Current smoker, social ETOH, pregnant, overweight, controlled DM/HTN
III = Severe systemic disease. Substantive functional limitation. One or more moderate/severe disease. Poor DM, COPD, HTN, obese, hepatitis, ESRD w/regular HD, moderately reduced EF
IV = Severe systemic disease that is a constant threat to life. MI, CVA, TIA, CAD/stents, severe valve dysfunction, severely reduced EF, DIC, ARDS, ESRD w/o regular HD
V = moribund pt who is not expected to survives w/o the operation. Ruptured aneurysm, massive trauma, ICH
VI = brain dead, organs being donated
What are Saklad’s 5 degrees of ASA PS grading of operative risk?
1 - Pt’s physical state
2 - the surgical procedure
3 - the ability/skill of the surgeon
4 - attention to post-op care
5 - past experience of the anesthetist in similar circumstances
Define: GA, IV/monitored sedation, Regional and Local anesthesia
GA = total LOC, ET or LMA, major surgeries
IV/Monitored = LOC ranges, drowsy to deep sleep. NC or face mask, requires vigilant observation
Regional = numbs a large part of the body using a local anesthetic (epidural or spinal), good for child birth or a hip replacement
Local = one-time injection that numbs a small area. Such as a biopsy
What agents most commonly have side effects in anesthesia?
Neuromuscular blockers, latex, antibiotics, chlorhexidine and opioids
What medications do you continue prior to surgery?
HTN meds (excepts ACEs and ARBs), BBs, anti-depressants, anxiolytics, TCAs (get an EKG), thyroid meds, oral contraceptives (unless they are at high risk of thrombosis, then dc 4 weeks prior), eye drops, Gerd, opioids, anti-convulsants, asthma, corticosteroids, statins, ASA (if they had prior PCI or high grade ischemic disease) COX and MAOIs (avoid demerol and ephedrine)
What medications do you DC prior to surgery?
ASA, P2Y12 (plavix, prasugrel, ticlopidine), topical meds (day of) diuretics (except HCTZ), sildenafil, NSAIDs, Warfarin, post-menopausal HRT, non-insulin anti-diabetics (day of), short acting insulin (if insulin pump, keep it going), long acting insulin (type 1 = take 1/3 usual dose, type 2 = take none or up to half usual dose)
Echinacea effects?
Activates immune system, may decrease effectiveness of immunosuppressants and allergy concerns. No data about need to DC prior to surgery
Ephedra effects?
Increase HR/BP. Increase risk of stroke/tachycardia. Long term use can cause hemodynamic instability d/t decreased catecholamines. Stop 24 hours before
Garlic/Ginseng/Ginger/Ginkgo/Green tea effects?
All have change coagulation. G for bleeding. No data for ginger. Stop garlic /ginseng 7 days before, stop ginkgo 36 hours
Kava effects?
sedative, anxiolytic. Stop 24 hours before
Saw Palmetto
May increase bleeding risk, no data on when to stop
St Johns wort
Helps with depression. Linked with delayed emergence, stop 5 days before
Valeria
Sedation, may increase anesthetic requirements. No data on when to stop