Exam 1 Flashcards
How is Metric BMI calculated?
BMI= kg / m2
[Weight (Kg) / Height (m2)]
Familial history can detect which condition?
Malignant Hyperthermia
How is BMI calculated in the inferior Imperial way?
703 x lbs / in2 [703 x weight / height (in2)]
BMI Ranges:
Underweight
Normal
Overweight
Obese
Underweight: <18.5
Normal: 18.5-24.9
Overweight: 25-29.9
Obese >30
2 Anesthesia Hard Stops
Unstable Chest Pain
Decompensated Heart Failure
Q
2 Most Important Physical Examination Questions?
Emergent Physical Examination A.M.P.L.E. meaning ?
Allergies and Medications
Allergies, Medications, PMH, Last meal eaten, Event leading to surgery.
Which court case established practice of informed consent?
Salgo v. Leland Stanford Jr. University Board of Trustees
Common causes of anaphylaxis? (3)
Rocuronium (muscle relaxant), antibiotics, chlorhexidine
Do not combine MAOIs with which 2 drugs?
Demerol / Meripedem
Ephedrine
Which drug will not work on someone on meth? TEST
Ephedrine
Glaucoma/stroke effect of vision? (2) TEST
Decreased peripheral vision loss
Glaucoma - tunnel vision
Risks of:
Garlic
Ginger
Gingko
Ginseng
Green Tea
bleeding
Risks of:
Ephedra
Kava
Saw Palmetto
St. Johns Wort
Ephedra: MI, dec catecholamines
Kava: dec sedation
Saw Palmetto: bleeding
SJW: CYP450
BMI can be used to determine? (4)
- Fluid volume requirement,
- acceptable blood loss,
- drug dosage,
- adequate u/o
What Pre-op intervention can be done for someone with sickle cell?
Admit day before to hydrate & possibly pre medicate as it is very hard to control their pain.
What is G6PD deficiency?
What is Factor V Leiden?
Enzyme helps red blood cells work properly. A lack of this enzyme can cause hemolytic anemia.
F5: clotting disorder
What should be avoided in Pts with neuromuscular disorders?
NMJB
How does anesthesia affect seizure meds?
It will reduce half-life of the seizure meds
Why is it important to monitor how long patient has been taking prednisone?
High exogenous glucocorticoids suppress cortisol secretion at HPA Axis. This may blunt normal cortisol hypersecretion during surgery.
What should be watched in someone with Raynaud’s?
BP sensitive; monitor O2, comfort b/c cold
Blood glucose swings is a sign of what?
Poor nutrition
3 Examples of High risk procedures are?
Aortic
Major Vascular
Peripheral Vascular
4 Examples of Intermediate risk procedures are?
Head/neck surgery
Carotid endarterectomy
Intrathoracic surgery
Intraabdominal surgery
Briefly Describe ASA w/ disease examples:
I
II (4)
III (3)
I: healthy Patient
II: mild disease w/o limitations; smoker, pregnant, drinker, well-controlled DM & HTN
III: Moderate disease w/ limitations; COPD, hepatitis, pacemaker, ESRD w/ dialysis
Briefly Describe ASA w/ disease examples:
IV
V (4)
VI
IV: Recent (<3months) MI, CVA, TIA, CAD, ARDS, Sepsis, severe CHF
V: Massive Trauma, Intracranial bleed, ischemic bowel, aneurysm
VI: brain dead organ donor
What is scored 1 point in the Revised cardiac Index scale? (6)
- cerebrovascular disease
- High-risk Sx (intraperitoneal)
- ischemic heart disease
- CHF
- DM requiring insulin
- Creatinine >2.0mg/dL
Revised Cardiac Risk Index:
Score 0 correlates to?
Score of 3?
0 = 0.4%
3 = 5.4% risk of major cardiac events.
What does the MET scale evaluate?
How many are sufficient?
- Cardiopulmonary fitness & if further testing is necessary.
- Want >4 METs. Below = cancel Sx to run more tests
Which Labs should be ordered for:
ASA-PS 3 or 4 undergoing intermediate risk? (4)
ASA-PS 2, 3, 4 undergoing major procedures (2)
3 or 4: CBC/Hgb/Hct, Renal Function Test, Coagulation, ECG
2, 3, 4: Renal Functioning Test, ECG
How to asses cardiopulmonary function in a bedridden Pt?
With a chemical stress test.
When to get pre-op renal panel? (6)
ASA __ & ___ undergoing intermediate
ASA __ & ___ & ___ undergoing major Sx
- DM
- HTN
- Cardiac disease
- N/V/D
- Renal disease
- Fluid overload
- ASA III & IV undergoing intermediate Sx
- ASA II, III, IV undergoing major Sx
What is considered minimal sedation?
Drowsy, able to talk
What is the difference between regional & local anesthesia?
- Regional numbs large area (epidural, nerve block)
- Local numbs small area (biopsy)
What are the most common allergies? (6)
- Abx
- Adhesives
- CHG/Iodine
- Latex (spina bifida)
- Rocuronium
- Opioids
What can be done in someone with an Abx allergy?
Give a test dose (1/10th)
In what kind of allergy are PCN/cephalosporin Abx avoided?
True IgE-mediated allergy
Which cancer is __ higher in Caucasian A. than African A.?
Which cancer is higher in African Americans than Caucasian Americans?
Skin cancer is 20% higher in Caucasian
Americans than African Americans.
Prostate cancer is higher in African Americans than Caucasian Americans.
Burning plastic releases ______ _______.
Person can also have _____ poisoning.
Treatment for poisoning?
releases carbon monoxide.
cyanide poisoning
Cyanocobalamin to treat cyanide poisoning
3 Types of Palpation and uses
Light palpation - organs
Deep palpation - abd masses
Bimanual palpation - organs
Define:
Strabismus
Leukoplakia
S: crossed eyes
L: thick white patches because of smoking and alcohol
How can Mg⁺⁺ evaluations be done in OB patients?
Knee extension/flexion
Ectropion
Entropion
Ptosis
E: eversion, lid margin turn out
E: inversion, lid margin turns inwards
P: abnormal drooping of lid over pupil
What is a VAN exam?
What does being VAN positive indicate?
Palms up, checking for downward drift.
VAN (+) = ↑ risk for LVO (large vessel occlusion)
When would a gluteal reflex be performed?
Trauma patients in assessing pelvic injury
How can Amides & Esters be identified?
- Amides have 2 I’s in their name
- Esters have 1 I in their name.
What 2 anesthetic consideration should one have for a patient with significant lordosis?
↑ abdominal pressure could = worse GERD.
Difficult spinal/epidural
Is Lidocaine and amide or an ester?
How can you tell?
Lidocaine = Amide
Two “i’s” would indicate and amide (ex. bupivicaine)
What component of “ester” medications are people allergic to?
PABA (Para-aminobenzoic acid)
Which antihypertensive medications should be d/c’ed before Sx & why?
- ACEi & ARB’s
- May cause severe hypotension under anesthesia.
What medication should be d/c’ed 4 weeks prior to Sx & why?
- Oral contraceptives
- High risk for post-op venous thrombosis
What interaction is there between NMJB’s & anticonvulsants?
Anticonvulsants decrease the lifespan of NMJB’s
When should topical medications be discontinued prior to Sx?
24hrs
D/c which diuretic before Sx
When should it be d/c-ed?
Thiazides
24hrs
When is it not okay to d/c P2Y12 inhibitors?
Within the first 6 months of taking drug eluting stents.
When should Post-Menstrual HRT be d/c’ed prior to Sx?
4 weeks
What should a type 1 diabetic do with their insulin regimen prior to Sx?
- Take 1/3 of their usual dose the morning of Sx
- Continue basal rate if infusion pump present
What should a type 2 diabetic do with their insulin regimen prior to Sx?
Take none or up to half of a long-acting the day of Sx.
What & how much stress dose medication is given?
100mg hydrocortisone q8hr for up to 24-48hrs.
What are the NPO times for full meal, light meal, breast milk, & clear liquids?
8hrs, 6hrs, 4hrs, & 2hrs
Kahoot
Leoning Face associated with infectious disease?
Chipmunk face associated with which eating disorder?
Spider Angioma associated with which liver disease?
Pyloric Stenosis associated with mass shaped as?
Leoning Face associated with Leprosy.
Chipmunk face associated with Bulimia Nervosa
Spider Angioma associated with Cirrhosis.
Pyloric Stenosis associated with olive shaped mass.
Kahoot
Hyperthyroidism is associated with what ophthalmic change
Physical feature for Cushing’s disease
Rice water stool is commonly found in what illness?
Hyperthyroidism ; Exophthalmos.
Cushing’s disease ; Buffalo hump
Rice water stool ; Cholera
Stimulating the peroneal nerve causes? TEST
Foot drop; plantar reflex
When can tube feeds be continued?
With a Dobhoff unless it is a abdominal case.
What is Mendelson syndrome?
What two factors increase your risk for this?
Aspiration Pneumonitis is a chemical injury caused by inhaled gastric contents.
Increased risk of aspiration due to > 25mL of gastric contents and a gastric pH < 2.5.
What are some aspiration prophylactic measures?
- Decrease gastric volume
- Increase gastric pH (sodium citrate),
- H-2 receptor antagonist
- PPI’s
- Dopamine-2 antagonist.
H-2 receptor antagonists like Pepcid & PPI’s do what?
Increase gastric pH & decrease gastric acid secretion
Who is at risk for pulmonary aspiration?
- Pregnancy
- DM
- Significant opioid users
- BMI >40
- Emergent Sx
- Any esophagus or abdominal issue Pt
What is PONV?
What are risk factors for it? (4)
Premedication Nausea and Vomiting Prevention
Female, History of PONV, Nonsmoker, PostOp Opioids
For someone with an Apfel score of 3-4 should receive what considerations? (4)
- Avoid general anesthesia
- Propofol
- Minimize opioids
- Prevent 3 drugs from different classes.
For a Pre-op Pt currently on Vanc or fluoroquinolone should receive their Abx when?
2hrs before incision
What chance of cross-reactivity exists with cephalosporins and penicillin?
10%
What 2 anesthesia considerations are made in someone taking Echinacea?
-Reduces effectiveness of immunosuppressants.
-Can cause perioperative allergic reaction
What anesthesia considerations are made in someone taking Ephedra? (3)
D/c when?
- Risk of MI
- Arrhythmia
- Hemodynamic instability
- D/C 24hrs pre-op
What anesthesia considerations are made in someone taking garlic (ajo)?
D/c when
Inhibits plt aggregation. D/c 7 days prior to Sx
What anesthesia considerations are made in someone taking ginger?
Increased risk of bleeding
What anesthesia considerations are made in someone taking Ginko?
Increased risk of bleeding. D/C 36hrs before Sx.
What anesthesia considerations are made in someone taking Ginseng? (3)
- Hypoglycemia
- Inhibit Plt aggregation ->
- Decrease effect of Warfarin. D/c 7days prior to Sx.
What anesthesia considerations are made in someone taking Green tea?
Inhibit plt aggregation
What anesthesia considerations are made in someone taking Kava?
Increase sedative effects of anesthetics
What anesthesia considerations are made in someone taking Saw palmetto?
Increased risk of bleeding.
What anesthesia considerations are made in someone taking St John’s? (3)
- Induction of CYP450
- Affects benzos, CCB’s
- Delayed emergence.
What anesthesia considerations are made in someone taking Valerian?
- Increased sedation effects
- Increased anesthetic use with long-term use.
- Acute benzo withdrawal
Scopolamine patch should NOT be used in what kind of Pt? (2)
Confused because they can’t see?
Narrow-angle glaucoma, confused Pts
What N/V medication is given after induction & what can it cause?
Dexamethasone. Can cause increased blood glucose
When are Abx re-dosed in the OR?
When the Sx lasts >4hrs
RUQ pain with cholecystitis is called? TEST
Murphy’s sign
Kahoot
Bluish discoloration associated w/ pancreatitis?
Rebound tenderness associated w/ appendicitis?
Icteric Sclera associated with _______.
Addison’s disease associated with this skin color?
Condition w/ inspiratory wheezes?
Blue & Pan: Cullen sign
Rebound: McBurney’s point
Icteric S: Hepatitis.
Addison’s D: Bronze
Wheeze: Asthma.
What is the name for chest-clutching that occurs during MI? TEST
Levine’s sign
1 sign of hypoexmia in children? TEST
Bradycardia
Kahoot!
Myasthenia Gravis results in facial condition?
Two common findings in hyperthyroidism?
Which medication should be avoided in adrenal insufficiency & why?
Which two signs are common with Meningitis?
Which two are associated with hypocalcemia?
MG: Ptosis
HyperThy: Exophthalmos & Tachycardia
Adrenal: Etomidate causes adrenal suppression
Meningitis: Kernig and Brudzinski
Hypocalcemia: Chvostek and Trousseau
WEBER’S TEST
RINNES TEST
Purpose of test
Rinne’s test. + when air conduction is better than bone conduction.
Weber’s is heard in the midline is equal
Tests for hearing loss
Vibration travels faster through bone than air?
True, vibration travels fastest thru bone.
Rank the following from most to least reflective; bone, air, muscle, liver?
Air, bone, liver, muscle