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SURGERY EOR EXAM [PAEA BLUEPRINT]

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SURGERY EOR EXAM [PAEA BLUEPRINT]

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  • September 17, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • SURGERY EOR
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SURGERY EOR EXAM [PAEA BLUEPRINT]
_______is the most important anesthetic complication. Anesthesia causes an
uncontrolled increase in skeletal muscle oxidative metabolism, which overwhelms the
body's capacity to supply oxygen, remove CO2, and regulative body temperature. -
Answers -Malignant hyperthermia

If patient is hyperkalemic (normal range 3.8-5.0), how should you treat the patient? -
Answers -treat with glucose/insulin, and calcium +/-bicarb

_______is the reversing agent for opiods. - Answers -Naloxone

_______is the reversing agent for benzodiazipines. - Answers -Flumazenil

What is the best indicator used to monitor nutritional status? - Answers -prealbumin -
every 2-3 days

Intervention:
_________require central access and indicated when no enteral feeding for > 7 days. -
Answers -TPN - total peripheral nutrition

The _________is the most important part of the history before surgery. - Answers -
cardiac history -- history of MI, unstable angina, valvular disease

In patients with known cardiac disease, aggressive intraoperative lowering of
myocardial oxygen demand with ____ has been shown in RCT's to improve outcomes
and should be used. - Answers -beta blockers

_______invades the inner ear and enteric tissues as well as the lung. - Answers -
Klebsiella

______organisms are often found together with anaerobes. - Answers -Enteric
organisms ie. enterobacteriaceae and enterococci

Among the anaerobes, ___&___are often present in surgical infections and
_____species are major pathogens in ischemic tissue. - Answers -Bacteroides &
Peptostreptococci; Clostridium

___&___are usually nonpathogenic surface contaminants but may be opportunistic.

Some fungi and yeast cause abscesses in sinus tracts. - Answers -Pseudomonas &
Serratia

History of recent surgery, trauma, cancer, prolonged immobilization, or oral
contraceptive use increases the risk of ____. - Answers -DVT - deep vein thrombosis

,What is Homan's sign? - Answers -pain on passive dorsiflexion of ankle

What is the test of choice for DVT? - Answers -doppler ultrasound

How is the D-dimer text useful? - Answers -It is good at ruling a DVT out (if the text is
negative) but not rule it in

Tx of DVT --
1. Initiate use of ____or____to what dose?
2. Overlap with the use of ____to what therapeutic range?
3. Why overlap therapies? - Answers -DVT
1. Initiate Heparin to PTT of 0.3-0.7 U/mL or LMWH wo monitoring.
2. Overlap with warfarin to INR between 2-3.
3. Overlap therapies to decrease changes of hypercoagulable state.

The most common cause of SIRS (systemic inflammatory response syndrome) is
sepsis. What are the criteria for dx of SIRS? - Answers -At least 2 of the following:
1. temp >38C or <36C
2. tachy >90
3. tachypnea > 20 breaths/minute
4. PCO2 <32mmHg
5. WBC > 12,000/uL or <4000/uL

After sepsis, what are the next two most common causes of SIRS? - Answers -
pancreatitis and drugs

What is the difference between hypovolemia and dehydration? - Answers -hypovolemia
is loss of both water and sodium while dehydration is loss of intracellular water or deficit
with hypernatremia -- dehydration occurs when patient can not adjust water intake for
water loss

What are the clinical signs of dehydration and hypovolemia? - Answers -tachycardia,
hypotension, pale skin, increased capillary refill time, dizziness, faintness, nausea,
thirst, decreased urine output -- in hypovolemia, urine will demonstrate low sodium
concentration

What are 2 common conditions with dehydration? - Answers -diabetes insipidus (lack of
ADH or unable to respond to ADH), fever with increased water loss

Hyponatremia Causes
_______ = cirrhosis, CHF, nephrotic syndrome, massive edema
_______=states of severe pain or nausea, trauma, brain damage, SIADH
_______=prolonged vomiting, decreased oral intake, severe diarrhea, diuretic use
Misc causes = factitious hyponatremia, hypothyroidism, adrenal insufficiency,
malnourished states, primary polydipsia - Answers -Hypervolemic, Euvolemic,
Hypovolemic

,When accessing cardiac disease prior to surgery, what is the most important thing to
access? - Answers -aortic stenosis -- crescendo diastolic rumble at apex

Guidelines for the use of antibiotics include administration within _______ of surgery
and redosing after 4 hours. What is the abx of choice? - Answers -1 hour
Abx of choice: cefazolin for all except colorectal then cefazolin/metronidazole

Pre-op -- Metabolic disease/syndrome -- what are the 5 criteria? - Answers -3/5 to
diagnose:
1 - diabetes
2 - central obesity
3 - HTN
4 - high serum triglycerrides
5 - low HDL levels

______should be monitored before surgery bc it is a stimulant and vasoconstrictor --
can lead to severe tachycardia - Answers -Cocaine

Pre-Op -- What are the indications for EKG and CXR? - Answers -EKG - men >40,
women>50, known CAD, DM, or HTN
CXR - age >50, known cardiac or pulmonary disease

What are the 5 classic "W's" of post operative fever? - Answers -W - wind (atelectasis)
W - water (UTI)
W - wound (wound infection)
W - walking (DVT/thrombophlebitis)
W - wonder drugs (drug fever)

If the post op fever occurs within the first 24 hours of surgery, what is the most likely
cause? - Answers -wind/atelectasis

If the post op fever occurs within days 3-5 post op, what is the most likely cause? -
Answers -water/UTI, catheter related phlebitis, pneumonia

If the post op fever occurs within days 5-10 post op, what is the most likely cause? -
Answers -wound infection, pneumonia, abscess, infected hematoma, C diff colitis,
anastomotic leak, DVT, peritoneal abscess, drug fever, PE, parotitis

_______is the most common pathogen in wound infections and around foreign bodies. -
Answers -Staph aureus

What are the two most common treatments for hyponatremia?
Other less common treatment? - Answers -salt tabs and fluid restriction; vasopressin
receptor antagonist in SIADH, CHF, and cirrhosis

, Hypernatremia is almost always due to _______. Therefore, what is the treatment? -
Answers -dehydration; rehydrate!

What s/s can result in a hyperkalemic patient? - Answers -cardiac arrhythmias (tall
peaked T waves) and weakness

If the potassium level is above 6meq/L or the patient has EKG changes, what
treatments can lower K temporarily? - Answers -calcium gluconate, sodium bicarbonate,
insulin and glucose, kayexalate (takes longer to be effective)

______&______ is extremely effective in decreasing potassium. - Answers -Dialysis
and furosemide

Hypokalemia is usually due to ________, hypomagnesemia, alkalosis, high aldosterone
levels. How is it treated? - Answers -potassium loss; replacement must be slow!!!
Mild loss: oral KCl supplements or K containing foods
Severe loss: IV supplementation - rate 10mEg/hr

Causes of ________are VITAMIN D METABOLIC DISORDERS, abnormal PTH
function, primary hyperparathyroidism, Lithium, malignancy, disorders related to high
bone turnover rates (hyperthyroidism, prolonged immobilization, thiazide use, vit A
intoxication, Pagets dz of bone, multiple myeloma), renal failure - Answers -
hypercalcemia

How should hypercalcemia be treated? - Answers -fluid and diuretics, bisphosphonates,
and calcitonin

_______is usually caused by ineffective PTH (chronic renal failure, absent active vit D,
ineffective active vit D, pseudohypoparathyroidism), deficient PTH. - Answers -
Hypocalcemia

How should hypocalcemia be treated? - Answers -intravenous calcium gluconate, Tums

Increased CO2, hypoventilation, or decreased pH is aka ___. - Answers -respiratory
acidosis

Decreased CO2, hyperventilation, or increased pH is aka ___. - Answers -respiratory
alkalosis

Increased H+ or HCO3 loss, DKA, lactic acidosis is aka ___. - Answers -metabolic
acidosis

Loss of H+ is aka ________. - Answers -metabolic alkalosis

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