Surgery Flashcards
Recommendations for lung cancer screening
Annual chest CT for all current & former smokers who:
- Are age 55-79
- Quit <15 years ago
- Have >30 pack years
Histologic type for Pancoast tumor
Squamous cell CA
DDx: Adult, jaundice, elevated LFT’s vs Adult, jaundice, elevated Alk Phos
LFT: Hepatitis; Hemochromatosis
ALK PHOS: Cancer; PBC/PSC; Gallstones
Hearing loss:
TM with red blush vs with white horseshoe
Red blush = otosclerosis (AD)
White horseshoe = tympanosclerosis (chronic OM)
Interpretation of Weber/Rinne tests
Weber –> + is conductive (ips) or sensory (cont)
Rinne –> + is normal or sensory, - is conductive
Difference between Dix Hallpike and Epley
DH = diagnostic Epley = treatment
Mutation, Wilsons disease
ATP7B
ENT complication of gout
Higher incidence of salivary stones
Acute vs chronic management of gout
Acute: NSAIDS or colchicine (if no NSAID)
Chronic: Allopurinol – will trigger acute attack!
Best imaging for toxic megacolon
AXR – no Barium!
Treatment for toxic megacolon
NGT, IVF
Steroids if IBD e/o
Presentation of toxic megacolon
- Hx of abx use or IBD
- bloody diarrhea
- peritonitis with SIRS criteria
Appropriate workup for primary lung cancer
- CXR & CCT
- Small nodule <8mm : follow serial CCT
- Likely malignancy: Bx and/or VATS
Appropriate imaging for aspiration foreign body
- XR
2. CT if XR is neg (non radio opaque objects)
4 drug classes most likely to cause pill esophagitis
- Tetracyclines
- NSAID’s
- Bisphosphonates
- Vitamin supplements (Fe esp)
Treatment for bony mets from prostate primary
– If SC compression –> emergency steroids
External beam radiation
Best Antibiotics for bacterial prostatitis
Bactrim or Keflex
Treatment: infantile hemangioma
Watchful waiting
If ulcerated –> propranolol
Required vax in burn patients
Tetanus
Appropriate tetanus prophylaxis:
Clean wound, up to date on shots (3 or more) vs dirty wound, up to date on shots
Clean: TT only if last dose >10 years
Dirty: TT only if last dose >5 years
Appropriate tetanus prophylaxis:
Clean vs dirty wound, <3 prior shots (inadequate)
Clean: TT
Dirty: TT & TG
CA-125 vs CEA?
CA-125 = ovary CEA = colon
Best imaging to assess for metastatic disease
CT
Treatment: giant cell arteritis
Steroids
Treatment: Buergers disease
Quit smoking
Predisposing conditions for SIBO
Gastric motility impairment – diabetes, IBD
Workup for dyspepsia in young vs old patient
Young?
- Trial PPI
- ? H. pylori testing
- Barium swallow if no improvement
Old/alarm symptoms?
- UGI w Bx
- CT if Bx +
E/o : popliteal Baker cyst
DJD
Treatment: hypertensive emergency in pregnant and non pregnant adult
Pregnant? Hydralazine
Not pregnant? Sodium nitroprusside
Diagnosis? Infant with weak abdominal muscles, dilated ureters, undescended testes
Most likely COD?
Dx = prune belly (Eagle Barrett syndrome) COD = pulmonary hypoplasia
Best imaging for bone mets
Technetium 99 bone scan
Contraindications for immunomodulators:
Prednisone?
Azathioprine?
Cyclosporine?
P - diabetes
A - cirrhosis
C - renal dz
Crypt abscesses are seen in
UC
What is IRIS?
Immune Reconstitution Inflammatory Syndrome – the reason not to start (or restart) HAART in an acutely ill AIDS patient
A deformity in which body system causes oligohydramnios vs polyhydramnios?
Oligo – renal (can’t produce urine)
Poly – GI (can’t swallow)
Leslar-Trélat sign
Acute eruption of sebhorreic keratoses; suggestive of gastric cancer
Justifies ordering an ACT
Treatment for keratoacanthoma
A low grade SCC; should be excised completely
Anatomic site for foreign body impaction in infants vs children
Baby: larynx
Kid: R main bronchus or trachea
Is blood hyper or hypo dense on CT?
Hyper
Diagnosis: head CT shows hyperdense fluid in ventricles
SAH
1 most common brain tumor
Metastatic lung cancer
Most likely diagnosis: newborn with difficulty breathing and CXR showing diffuse interstitial/alveolar edema
What’s the treatment?
Transient tachypnea of the newborn
Self resolving
What is a normal value for CVP? Which values would suggest fluid overload?
Normal: 0-5
Fluid overload: >12
Under which criteria can a pregnant trauma patient be d/c home?
If they can’t be d/c home, what test should you order?
- Fetal nonstress test shows no acute distress
- No contractions > q10m
- No abdominal pain
- Normal fetal heart tracing
First test if patient fails these criteria: Biophysical profiling
Treatment: Warthin tumor
Superficial parotidectomy
Biggest risk factor: Warthin tumor
Smoking
Best imaging: renal artery stenosis
Renal arteriogrhaphy
Screening guidelines: AAA
Men >age 50 with significant smoking history
US
Most common location of a peripheral aneurysm
Popliteal; often b/l
Imaging for intact vs stable ruptured AAA
Intact: US
Ruptured: CT
Treatment: ruptured AAA
Morphine and propranolol
Prenatal US finding (and its significance): Gastroschisis
Polyhydramnios (concomitant intestinal atresia)
Infants with omphalocele should be screened for these three genetic syndromes
- Trisomy 13
- Trisomy 18
- Beckwith-Wiedemann (macroglossia, microcephaly)
Treatment, according to Cobb angle: Scoliosis
> 20 needs a brace
>50 needs surgery
Workup for dysphagia
- Barium swallow to r/o Zenker
- Manometry to r/o achalasia
No UGI until Zenker has been r/o (risk of perf)
MOA of these drugs for acute angle closure glaucoma:
PO Carbonic anhydrase inhibitors
Topical beta blockers and alpha 2 agonists
CAI: decreases intraocular pressure
Symps: induces pupil constriction (miosis)
Treatment: acute adrenal insufficiency
Corticosteroids and IVF
Pharmaceutical treatment for anal fissure – what are they and why do they work? Side effects?
Vasodilators – nifedipine, nitroglycerin
Increased bloodflow improves healing
Nitro can cause headaches
Imaging for aortic dissection stable vs unstable
Stable: CT
Unstableish: TEE
Unstable: emergent thoracotomy
When would a dissection of the descending aorta necessitate surgical repair?
Signs of end organ or limb ischemia
Best drug treatment for dissection of descending aorta?
Labetalol
Aortic transection: finding on CXR
Left hemothorax with widened mediastinum and deviation of trachea to the right
3 diseases that predispose to angiodysplasia
- Renal disease
- Aortic stenosis esp when associated w VWD
- VWD alone
Preferred drug treatment for:
Dog bite
Black widow bite
Brown recluse bite
Dog: Amox/Clav
Black widow: Calcium gluconate
Brown recluse: Dapsone
Deadliest animal injury
Bee sting
Prophylaxis for post op atelectasis in smokers
Stop smoking at least 8 weeks prior to surgery
Common e/o organism: bacterial parotitis
MRSA
Common e/o organism: Septic arthritis
MRSA
Most common appendiceal tumor
Mucinous adenocarcinoma
Diagnosis: “lead pipe” appearance of colon on AXR
UC
Initial imaging: basilar skull fracture
Head CT
Treatment: Bell’s palsy
PO corticosteroids
Definitive diagnostic test for biliary atresia
HIDA scan with Phenobarbital
Imaging: Bladder dome rupture
Retrograde cystogram
What is the clinical indication for aminocaproic acid? How does it work?
Pre-operative for severe (transfusion-dependent) Hemophilia A
Decreases fibrinolysis by binding to plasminogen
Mechanism of action for each of these anticoagulants?
Fondaparinux (Arixtra) Bivalrudin Argatroban Rivaroxaban (Xarelto) Apixaban
Direct thrombin inhibitors:
- Bivalrudin
- Argatroban
Direct Xa inhibitors:
- Rivaroxaban
- Apixaban
Indirect Xa inhibitors (anti-thrombin binding)
- Fondaparinux