Quick-Fire: 50 Questions in General Surgery: Part VII
B Phillips
Citation
B Phillips. Quick-Fire: 50 Questions in General Surgery: Part VII. The Internet Journal of Surgery. 2003 Volume 5 Number 2.
Abstract
Questions
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How do you treat Carbon Monoxide poisoning in pregnancy ?
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How do you differentiate myoglobinuria from blood in the urine ?
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How do you treat myoglobinuria ?
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What is Conn's Syndrome ?
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How does mannitol work ?
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What two interleukins are produced by macrophages and monocytes ?
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What are the two types of granules in platelets ?
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How fast do you correct severe hyponatremia ?
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What are the four classes of shock ?
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How do you treat a Curling's Ulcer ?
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Which class of shock do you begin to see a decrease in urine output ?
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How do you estimate the size of an endotracheal tube in a child ?
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What is SCIWORA ?
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What are the features in Beck's Triad ?
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How can you differentiate between tamponade and tension pneumothorax ?
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How much hemoglobin do you need to look cyanotic ?
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Where does the Internal Mammary Artery originate ?
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What is the narrowest point in a child's airway ?
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What is the first anch off of the subclavian artery ?
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What metabolic disturbance may you see with Sulfamylon (and how does it work ?)
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How do you treat “left-sided portal HTN” ?
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What is the incubation period for Clostridium tetani ?
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In massive UGI bleeding, why is somatostatin safer to use compared to vasopressin ?
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How do you treat an amebic liver abscess ?
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How do you treat a Hydatid Cyst ?
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What is phlegmasia cerulea dolens ?
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What is the most common complication of stress gastritis ?
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How do you treat a mutinodular goiter ?
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What is the anatomical definition of “upper GI bleeding” ?
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What is the false negative rate for a thyroid FNA ?
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What is the best diagnostic test for a suspected colovesical fistula ?
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What is a Type III Gastric Ulcer ?
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How do you calculate BMI ?
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How do you treat Hashimoto's Thyroidistis ?
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What is the Child's Classification ?
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How do you treat a recurrent Phyllodes Tumor ?
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What is a Chance Fracture ?
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What are the risks for esophageal cancer ?
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What must you consider in a patient with hypertension and a thyroid nodule ?
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How do you treat a thyroid storm ?
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How do you treat Malignant Hyperthermia ?
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With a positive family history for malignant hyperthermia, how do you diagnose it in your patient ?
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How do you treat the Fat Emboli Syndrome ?
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What is ecthyma gangrenosum ?
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How do you treat a duodenal hematoma ?
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Why do you place a patient right-side up with air-embolism ?
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What is the treatment of Von Willeand's disease ?
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How much CSF is produced in one day ?
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How do you treat DCIS ?
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How do you treat LCIS ?
Answers
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Place on 100 % Oxygen and wait four-times longer than you would in a non-pregnant female – i.e. at least 4 hours (fetal Hb has a four-times higher affinity to carbon monoxide than adult Hb).
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Both will be positive for blood on dipstick, but myoglobinuria will not have RBC's under the scope
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Treatment of Myoglobinuria: fluid, fluid, fluid, and –a- Mannitol (25 – 50 g q 6 hrs)b- Bicarb Alkalinization (1 – 2 amps per liter of IVF)b -Fasciotomy, if indicated (the pt must be closely observed)
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Conn's Syndrome: Primary Hyperaldosteronism**
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Two major effects of mannitol: a direct osmotic diuretic, and a free radical scavenger*
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IL-1 and IL-6
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Dense (energy proteins) and Alpha (procoagulants)
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1 mEq/hr, not to exceed 25 mEq's in 48 hour period; rare to use 3 % NaCl
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Class I – IV
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Curling's: stress ulcer associated with large-suface area burns**
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Class III
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ET Tube: ( Age / 4 ) + 4
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Spinal Cord Injury Without Radiographic Abnormality* always assume a c-spine injury !
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JVD, Muffled Heart Tones, Hypotension
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Tension PTX vs. Tamponade
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You need at least 5 g of Hb to look cyanotic
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Subclavian artery
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Cricoid cartilage
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The first anch off of the subclavian is the verteal artery
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Metabolic Acidosis secondary to carbonic anhydrase inhibition
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Left-sided portal hypertension is due to splenic vein thrombosis (from pancreatitis, pancreatic cancer, retroperitoneal fiosis...). The pt will present with a major gastric variceal bleed (not esophageal). The treatment is splenectomy, not TIPS.
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7 – 10 days
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Vasopressin can cause coronary vasoconstriction
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IV Flagyl for 3 weeks, and then, if necessary, percutaneous drainage
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Echinococcal Cyst: Surgical treatment is effective in most cases. Be careful NOT to rupture the cyst because of the risk of implantation and anaphylaxis. Usually, attempts at aspiration and/or injection (i.e. hypertonic saline) are not very effective. Formalin and phenol have been injected in the past but this should be of historical interest only (because of the risk of damaging bile ducts if a direct communication exists). The best way is to shell-out the cyst with a “rim” of hepatic tissue or by staying between the layers of endocyst and ectocyst. At times, hepatic lobectomy will be required. Albendazole is recommended afterwards to prevent recurrence.
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Phlegmasia cerulean dolens: the most severe form of ileofemoral thrombosis. It is a severe obstruction of the venous outflow leading to arterial insuffiency, cyanosis, and eventual gangrene.
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Bleeding; stress gastritis usually does not lead to perforation.
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Subtotal thyroidectomy
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Bleeding which occurs proximal to the ligament of Treitz
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False Negative Rate of Thyroid FNA: Less than 6 %
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CT Scan
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Type III Gastric Ulcer: a pre-pyloric ulcer
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BMI = weight (kg) / height (m)2
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Treatment of Hashimoto's Thyroiditis: an autoimmune disease treated by suppressive doses of thyroid hormone (once the diagnosis has been established)
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Child-Pugh Classification of functional status: $image_path/quick7-tbl1.jpg
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Re-excison to negative margins; axillary dissection, chemotherapy, and radiation are all unnecessary.
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Chance Fx: a lumbar fracture associated with seat-belt injuries; strongly consider the presence of an associated small bowel injury
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Risks of Esophageal Cancer: $image_path/quick7-tbl2.jpg
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Pheochromocytoma
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B-blocker (Inderal) and PTU
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Dantrolene
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Perform a muscle biopsy under local anesthesia; histology will be characteristic.
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Treatment is supportive (oxygenation, ventilation, fluid support)
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A green blister filled with Pseudomonas organisms
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Observation with NGT decompression, NPO, and TPN for 2 weeks – far majority will resolve. If seen during an exploration for other reasons, then open evacuation
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To keep the air in the right ventricle - you are trying to keep air from “locking” in the PA
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Cryoprecipitate
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About 500 cc's / day
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WLE + Post-op Radiation
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Close follow-up and observation; pt is at higher risk of developing invasive ductal cancer