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185 Cards in this Set

  • Front
  • Back
Signs & tx of a right ventricular infarct
Signs: hypotension, tachycardia, clear lungs, elevated JVP, and NO pulsus paradoxus

Tx: fluid resuscitation, don't give nitro!
Tx for CHF exacerbation
LMNOP: lasix, morphine, nitro, O2, position (elevate head) or positive pressure ventilation
Tx for stable CHF that has mortality benefit
ACEi, Beta-blockers, spironolactone
Tx for ACS (UA, NSTEMI, STEMI)
BEMOAN: beta-blockers, enoxaparin, morphine, O2, ASA, nitro
Long-term tx post-MI
"ASA-Beta-Stati-Pril": ASA, Beta-blocker, Statin, ACEi
Most common cause of death post-MI
Arrhythmias (VFib)
Post-MI complication: New systolic murmur 5-7 days after
Mitral regurgitation due to papillary muscle rupture
Post-MI complication: Cause of acute severe hypotension
Cardiac tamponade due to ventricular free wall rupture
Post-MI complication: "step-up" in O2 concentration from RA to RV
Ventricular septal rupture leading to left-to-right shunt
Post-MI complication: persistent ST elevation ~1mo later + systolic murmur
Ventricular wall aneurysm
Post-MI complication: Cannon A-waves
AV dissociation either due to VFib or 3rd degree heart block

Valve bwtn artia and ventricular not going through (AV dissociation) - bounding pulse in JV
Post-MI complication: pleuritic chest pain and fever 5-10 wks later
Dressler's syndrome (likely autoimmune pericarditis). Tx with NSAIDs and ASA.
Diagnose: chest pain worse with inspiration, better with leaning forward, friction rub, and diffuse ST elevation
Pericarditis

tx w/ NSAIDS
Diagnose: chest pain worse with palpation
Costochondritis
Diagnose: chest pain with vague hx of recent viral infection and murmur
Myocarditis
Diagnose: chest pain that occurs at rest, worse at night, few CAD risk factors, with migraine H/As, transient ST elevation during episodes
Prinzmetal's angina (tx with CCB or nitrates)

dx w/ ergonovine stimulation test
EKG rhythm: progressive prolongation of PR interval followed by a dropped beat
2nd degree AV block - Type I
EKG rhythm: Cannon-a waves on physical exam and regular P-P interval and regular R-R interval
3rd degree AV block
EKG rhythm: varrying PR interval with 3 or more morphologically distinct P waves in the same lead; seen in older person with chronic lung dx (COPD) in pending resp failure
MAT: multifocal atrial tachycardia
EKG rhythm: short PR interval followed by QRS>120 ms with a slurred initial deflection representing early ventricular activation via the bundle of Kent
WPW: Wolff-Parkinson-White syndrome

tx w/ procainamide

Do NOT give B-blockers, digoxin, CCB (V+D) --> anything that slows AV node
EKG rhythm: regular rhythm with a ventricular rate of 125-150 bpm and atrial rate of 250-300 bpm
Atrial flutter
EKG rhythm: prolonged QT interval leading to undulating rotation of the QRS complex around the EKG baseline in a pt with low Mg, low K, lithium overdose, or TCA overdose
Torsades de pointes
EKG rhythm: renal failure pt OR crush injury OR burn victim with peaked T-waves, widened QRS, short QT and prolonged PR
Hyperkalemia
EKG rhythm: undulating baseline, no P waves, irregular RR interval in a pt with hyperthyroidism OR old pt with SOB/dizziness/palpitations with CHF or valve disease
AFib
Murmur: systolic ejection murmur, crescendo-decrescendo, louder with squatting, softer with valsalva, +parvus et tardus
Aortic stenosis
Murmur: systolic ejection murmur louder with valsalva, softer with squatting or handgrip
Hypertrophic cardiomyopathy
Murmur: late systolic murmur with click, louder with valsalva and handgrip, softer with squatting
Mitral valve prolapse
Murmur: Holosystolic murmur radiates to axilla with left atrial enlargement
Mitral regurgitation
Murmur: Holosystolic murmur with late diastolic rumble in kids
VSD
Murmur: Continuous machine-like murmur
PDA
Murmur: wide fixed and split S2
ASD
Murmur: rumbling diastolic murmur with an opening snap, left atrial enlargement, and AFib
Mitral stenosis
Murmur: blowing diastolic murmur with widened pulse pressure
Aortic regurgitation
Diagnose CXR: hyperlucent lung fields with flattened diaphragms
Diagnose CXR: hyperlucent lung fields with flattened diaphragms
COPD
Diagnose CXR: opacification, consolidation, air bronchograms
Diagnose CXR: opacification, consolidation, air bronchograms
Pneumonia
Diagnose CXR: heart>50% AP diameter, cephalization, Kerly B lines, interstitial edema
Diagnose CXR: heart>50% AP diameter, cephalization, Kerly B lines, interstitial edema
CHF
Diagnose CXR: cavity containing air-fluid level
Diagnose CXR: cavity containing air-fluid level
Abscess
Diagnose CXR: Upper lobe cavitation, consolidation, +/- hilar lymphadenopathy
Diagnose CXR: Upper lobe cavitation, consolidation, +/- hilar lymphadenopathy
TB
Common causes of transudative pleural effusion
CHF, nephrotic, cirrhotic
Diagnose: transudative pleural effusion low in pleural glucose
Rheumatoid arthritis
Diagnose: transudative pleural effusion high in lymphocytes
TB
Common causes of exudative pleural effusion
Cancer or parapneumonic (pleural effusion secondary to pneumonia)
Light's criteria
Exudative pleural effusion if:
1. LDH > 2/3 of upper limit of normal
2. LDF effusion/serum >0.6
3. Protein effusion/serum >0.5
Sx of a PE
Sx: pleuritic chest pain, hemoptysis, tachypnea, tachycardia
Signs of a PE
right heart strain on EKG, sinus tachycardia, decreased vascular markings on CXR, wedge infarct, ABG with low CO2 and O2
Causes and tx of ARDS
Sepsis, gastric aspiration, trauma, low perfusion, pancreatitis
Tx: mechanical ventilation with PEEP
Tx for COPD that has mortality benefit
Quitting smoking and continuous O2 therapy >18 hrs per day
Important vaccinations for COPD pts
Pneumococcus with a 5yr booster and yearly influenza vaccine
Diagnose: 1 cm nodules in upper lung lobes with eggshell calcifications
Silicosis
Diagnose: Hilar lymphadenopathy, increase ACE, erythema nodosum
Sarcoidosis = syndrome involving abnormal collections of chronic inflammatory cells (granulomas) that can form as nodules in multiple organs
Diagnose: pt with kidney stones, constipation, low PTH, and CENTRAL lung mass
Squamous cell carcinoma of the lung (paraneoplastic syndrome secondary to secretion of PTH-rP = low PO4 and high Ca)
Diagnose: pt with shoulder pain, ptosis, constricted pupil, facial edema, wt loss, cough + hemoptysis
Superior Sulcus Syndrome from Small Cell Carcinoma (also a central lung cancer)
Diagnose: pt with ptosis that improves after 1 min of upward gaze
Lambert Eaton Syndrome (autoimmune Ab production against pre-synpatic Ca channels)
-Around 60% of those with LES have underlying malignancy, most commonly Small Cell lung cancer; it is therefore regarded as a paraneoplastic syndrome
Diagnose: old smoker presenting with hemoptysis, wt loss, Na=125, moist mucus membranes, and normal JVP
SIADH from small cell lung cancer (produces euvolemic hyponatremia)
Tx: fluid restrict (if Na>112, add 3% saline)
Diagnose: pt with hemoptysis and wt loss, with CXR showing PERIPHERAL cavitation and CT showing distant mets
Large Cell Carcinoma of lung
IBD that increases risk for Primary Sclerosing Cholangitis
Ulcerative colitis (PSC leads to higher risk of cholangiocarcinoma)
IBD in which fistulas, granulomas, and transmural inflammation are likely
Crohn's
Tx of IBD
Corticosteroids to induce remission, ASA and sulfasalazine to maintain remission. For Crohn's, give metronidazole for any ulcer or abscess. If severe disease, give azathioprine, 6MP, and methotrexate.
Diagnose: AST>ALT (2x) + high GGT
Alcoholic hepatitis
Diagnose: ALT>AST and in the 1000s
Viral hepatitis
Diagnose: AST and ALT in the 1000s after surgery or hemorrhage
Ischemic hepatitis (shock liver)
DDx of elevated direct bili
Obstructive liver dx (stone, cancer), Dubin-Johnson syndrome, Rotor syndrome
DDx of elevated indirect bili
Hemolysis, Gilbert's syndrome, Criglr-Najjar syndrome
Diagnose: elevated ALP and GGT
Bile duct obstruction. If pt has IBD, consider PSC
Diagnose: elevated ALP, normal GGT, normal Ca
Paget's disease of the bone (excessive breakdown and formation of bone causing bone pain, back pain, increase hat size, hearing loss, headache).
Tx with bisphosphonates.
Diagnose: liver disease pt with elevated antimitochondrial Abs
Primary Biliary Cirrhosis
Diagnose: liver disease pt with elevated ANA + antismooth muscle Abs
Autoimmune hepatitis
Diagnose: pt with low ceruloplasmin and high urinary Cu
Wilson's disease (hepatitis, psych sx due to Cu deposition in the basal ganglia, corneal deposits=Kayser-Fleischer rings)
Diagnose: liver disease pt with high Fe, low ferritin, low Fe binding capacity
Hemachromatosis (hepatitis, DM, golden skin)
Most common bugs causing meningitis
Strep pneumo
H. influenza
N. meningitidis
Tx for meningitis
Ceftriaxone, Vancomycin, Ampicillin (for Lysteria), and Dexamethasone
Pneumonia: most common bug?
Strep pneumo
Pneumonia: most common bug in healthy young people?
Mycoplasma
Pneumonia: most common bug in hospitalized pts?
Pseudomonas, Klebsiella, E. coli, MRSA
Pneumonia: most common bug in old smokers with COPD?
H. influenza
Pneumonia: most common bug in alcoholics with currant jelly sputum?
Klebsiella
Pneumonia: most common bug in old men with headache, confusion, diarrhea, and abdo pain?
Leigionella
Pneumonia: most common bug in pt who just delivered a baby cow and has vomiting and diarrhea
Coxiella burnetti
Pneumonia: most common bug in pt who just skinned a rabbit?
Franciella tularensis
Pneumonia: most common bug in pt who just had the flu?
MRSA
Positive TB test interpretation
Induration >15 mm is positive TB test in general pop
Induration >10 mm is positive if prisoner, healthcare worker, nursing home, DM, EtOH, chronically ill
Induration >5 mm if AIDS or immunosuppressed
Tx regimen for TB
RIPE: rifampin, INH (isoniazid), pyrazinamide, ethambutol
TB tx: s/e of Rifampin
body fluids turn orange/red, induces CYP450
TB tx: s/e of INH
peripheral neuropathy and sideroblastic anemia (prevent by giving vit B6), hepatitis with mild bump in LFTs
TB tx: s/e of Pyrazinamide
benign hyperuricemia
TB tx: s/e of ethambutol
optic neuritis, other color vision abnormalities
Acute endocarditis: most common bug?
Staph aureus
Subacute native valve endocarditis: most common valve affected and most common bug responsible?
mitral valve and Viridens group strep
IV drug use endocarditis: most common valve affected and most common bug?
tricuspid valve and Staph aureus
Endocarditis complications
CHF is #1 cause of death, septic emboli to lungs or brain
What is the next step if you find endocarditis caused by Strep bovis bacteremia?
Colonoscopy to look for colon cancer!
Criteria for diagnosing endocarditis?
Modified Duke Criteria:
A definite diagnosis of IE can be established if the following conditions are fulfilled: 2 major criteria, 1 major + 3 minor criteria, or 5 minor criteria.
Modified Duke Criteria:
A definite diagnosis of IE can be established if the following conditions are fulfilled: 2 major criteria, 1 major + 3 minor criteria, or 5 minor criteria.
When to suspect HIV...
1. young pt with new/bilateral Bell's palsy
2. young pt with unexplained thrombocytopenia & fatigue
3. young pt with unexplained wt loss >10%
4. young pt with thrush, Zoster, or Kaposi sarcoma
5. pt who "travels a lot for work" and have a lot of sex
Acute retroviral syndrome (initial post-HIV infection sx)
Sx of HIV infection can occur 2-3 wks after exposure but 3 wks before seroconversion (so ELISA is still negative): fever, fatigue, lymphadenopathy, HA, pharyngitis, N/V, diarrhea, +/- aseptic meningitis
Most common bug in HIV pt complaining of dyspnea, dry cough, fever, and chest pain? Findings on CXR? 1st line tx?
Pneumocystis jiroveci
CXR shows bilateral diffuse symmetric interstitial infiltrates
Tx: tmp-smx
Pneumocystis jiroveci
CXR shows bilateral diffuse symmetric interstitial infiltrates
Tx: tmp-smx
Diagnose: HIV+ pt with multiple ring-enhancing lesions on CT or MRI
CNS Toxoplasmosis
Tx: empiric pyramethamine sulfadiazine + folic acid for 6 wks; if no improvement, consider biopsy for CNS lymphoma
Diagnose: HIV+ pt with one ring-enhancing lesion on CT or MRI
CNS lymphoma, associated with EBV infection of B-cells
Tx: HAART
Diagnose: HIV+ pt with seizure with de ja vu aura and 500 RBCs in CSF
HSV encephalitis (predisposed for temporal lobe)
Tx: Give Acyclovir as soon as suspected
Diagnose: HIV+ pt with signs/sx of meningitis
Cryptococcal meningitis
Diagnosis: positive India ink stain
Tx: Amphotericin B (antifungal)
Diagnose: HIV+ pt with hemisensory loss, visual impairment, and +Babinski
PML: Progressive Multifocal Leukoencephalopathy (widespread demyelinative lesions due to infection of oligodendrocytes by a polyomavirus)
Diagnosis: brain biopsy is gold standard
Tx: experimental only (antiretrovirals)
Diagnose: HIV+ pt with memory problems and gait disturbance
AIDS-Dementia complex
Definition of febrile neutropenia
FEVER: single oral temp equal to or greater than 38.3C or 101F AND a febrile state of >38C for at least 1h
NEUTROPENIA: absolute neutrophilic count of <0.5, or a count of <1 with a predicted decline to <0.5 in the next 24 to 48 hours
Common cause of febrile neutropenia
Mucositis secondary to chemo that causes bacteremia (usually from the gut)
Work-up for febrile neutropenia
Tx: blood cx, then 3rd or 4th gen cephalosporin (ie. ceftazadime or cefipime); add Vanco if line infx suspected or if septic shock develops; add Amphotericin B if no improvement and no source found in 5 d
Diagnose: pt with target rash, fever, CN7 palsy, meningitis, and AV block
Lyme Disease
Tx: Doxycycline po; heart or CNS disease needs IV Ceftriaxone
Diagnose: pt with rash at the wrists and ankles (palms and soles), fever, and headache
Rickettsia
Tx: Doxycycline po
Diagnose: pt with a tick bite, no rash, myalgia, fever, HA, decreased platelets and WBCs, and increased ALT
Ehrlichiosis (tick-borne bacterial infection; bacteria live within WBCs of host)
Tx: Doxycycline po
Diagnose: immunosuppressed pt with cavitary lung disease, purulent sputum, weight loss, and fever; Gram+ aerobic branching, partially acid-fast
Nocardia (bacteria normally found in soil; disease is one of the "great imitators" bc produces nonspecific sx)
Tx: tmp/smx
Diagnose: pt with neck or face infection with draining yellow material (+sulfur granules); Gram+ anaerobic branching
Actinomyces
Tx: high dose PCN for 6-12 wks
Nephro: causes of hypervolemic hypoNa
CHF, nephrotic, cirrhotic causes
Nephro: causes of hypovolemic hypoNa
diuretics or vomiting
Nephro: causes of euvolemic hypoNa
SIADH (check CXR if smoker!), Addison's, hypothyroidism
If pt has hyponatremia, why should you not rapidly correct their serum Na?
HypoNa: Correcting the serum Na faster than 12-24 mEq/day can cause Central Pontine Myelinolysis (severe damage of myelin sheath of neurons in the pons, causing paralysis, dysphagia, dysarthria, etc)
If pt has hypernatremia, why should you not rapidly correct their serum Na?
HyperNa: Correcting serum Na faster than 12-24 mEq/day may cause cerebral edema.
Diagnose electrolyte abnormality: pt with peri-oral numbness, +Chvostek or Trousseau sign, and prolonged QT interval
Hypocalcemia
Diagnose electrolyte abnormality: "Bones, stones, groans, and psychiatric overtones", shortened QT interval
Hypercalcemia
Diagnose electrolyte abnormality: muscle weakness, ileus, ST depression, U waves
Hypokalemia
Diagnose electrolyte abnormality: peaked T waves, prolonged PR and QRS, sine waves
Hyperkalemia
Tx: Ca-gluconate, then insulin +glucose, kayexalate, salbutamol, and NaHCO3; Dialysis is last resort
Diagnose: muddy brown casts in a pt taking Amphotericin or Aminoglycosides or Cisplatin
Acute tubular necrosis (ATN)
Tx: fluids, avoid nephrotoxins, dialysis if indicated
Diagnose: protein, blood, & eosinophils in the urine, fever and rash, pt took tmp-smx 2 wks ago
Acute interstitial nephritis (AIN)
Diagnose: crush victim with very high serum CK, +blood on urine dipstick, but no gross hematuria
Rhabdomyolysis, causing hyperkalemia
Indicators for emergent dialysis
AEIOU:
A-acidosis
E-electrolyte imbalance (esp high K>6.5)
I-intoxication (esp antifreeze and Li)
O-overload of volume (sxs of CHF or pulmonary edema)
U-uremia (pericarditis, altered mental status)

*Dialysis not urgently indicated for rising Cr or oliguria alone!!
#1 cause of CKD
Diabetes mellitus
#2 cause of CKD
HTN
#1 cause of death in a CKD pt
Cardiovascular disease
Cx of CKD
HTN, fluid retention = CHF
normochromic normocytic anemia (loss of EPO)
hyperK
hyperPO4 (can cause precipitation of Ca into tissues = renal osteodystrophy and calciphylaxis (skin necrosis))
hypoCa
Uremia (confusion, pericarditis, pruritus, increased bleeding secondary to uremic-induced platelet dysfunction)
Diagnose: elderly pt with painless hematuria
bladder cancer until proven otherwise
Diagnose: pt with hematuria and progressive hearing loss & deafness
Alport Syndrome ( genetic disorder characterized by glomerulonephritis, endstage kidney disease, and hearing loss); mutation in collagen IV
Diagnose: pt with hematuria 1-2 wks after sore throat or skin infection
Post-strep glomerulonephritis
Diagnose: child with viral URI, abdominal pain, arthralgia, and purpura; can cause renal failure
Henoch-Schonlein Purpura
Diagnose: child who ate a hamburger and now has diarrhea, renal failure, petechiae, and MAHA (microangiopathic hemolytic anemia)
Hemolytic uremic syndrome (HUS) = Most cases are preceded by an episode of infectious, sometimes bloody, diarrhea caused by E. coli O157:H7 or Shigella, which is acquired as a foodborne illness or from a contaminated water supply.
Tx: supportive; don't tx with ABx bc causes release of more toxins
Mnemonic: DART - diarrhea, anemia, renal failure, thrombocytopenia
Diagnose: cardiac pt with renal failure, MAHA, thrombocytopenia, fever, and altered mental status; pt treated with ticlopidine (plt aggregation inhibitor)
Thrombotic thrombocytopenic purpura (TTP)
Tx: plasmapheresis; don't give plts
Distinguished from DIC bc PT and PTT are normal ins HUS/TTP
Mnemonic pentad of TTP: FARTN = fever, anemia, renal failure, thrombocytopenia, neuro signs
Diagnose: + c-ANCA, kidney/lung/sinus involvement
Wegener's Granulomatosis
Dx: most accurate test is biopsy
Tx: steroids or cyclophosphamide
Diagnose: + p-ANCA, renal failure, asthma, and eosinophilia
Churg-Strauss Disease (medium and small vessel autoimmune vasculitis, leading to necrosis. It involves mainly the blood vessels of the lungs (it begins as a severe type of asthma), gastrointestinal system, and peripheral nerves, but also affects the heart, skin, and kidneys)
Dx: best test is lung bx
Tx: cyclophosphamide
Diagnose: + p-ANCA, NO lung involvement, 30% pts are Hep B+
Polyarteritis Nodosa (PAN) = affects small/med arteries of every organ except the lungs!
Tx: cyclophosphamide
Types of kidney stones and most common
Most common: calcium oxalate
Others: cysteine, struvite (Mg/Al/PO4), and uric acid stones
Diagnose: pt receiving chemo tx for leukemia who develops flank pain radiating to groin + hematuria
Uric acid stone (secondary to increased production of uric acid from purine breakdown during periods of active cell proliferation, especially following chemo treatment in pts with leukemia)
What are the 4 histological subtypes of nephrotic syndrome?
1. MCD = minimal change disease
2. FSGS = focal segmental glomerulosclerosis
3. MN = membranous nephropathy
4. MPGN = membranoproliferative glomerulonephritis
Most common cause of nephrotic syndrome in kids
Minimal change disease (fusion of podocyte foot processes on electron microscopy)
Tx: steroids
Most common cause of nephrotic syndrome in adults
Focal Segmental Glomerulosclerosis (FSGS)
= The individual components of the name refer to the appearance of the kidney tissue on biopsy: focal—only some of the glomeruli are involved (as opposed to diffuse), segmental—only part of each glomerulus is involved (as opposed to global), glomerulosclerosis—refers to scarring of the glomerulus
Second most common cause of nephrotic syndrome in adults
Membranous glomerulonephritis (MGN)
= slowly progressive disease of the kidney affecting mostly patients between ages of 30 and 50 years, usually Caucasian; 85% idiopathic (aka unknown cause)
Which secondary cause of nephrotic syndrome is associated with chronic hepatitis and low complement?
Membranoproliferative glomerulonephritis (MPGN)
Which secondary cause of nephrotic syndrome is associated with heroin use and HIV?
Focal Segmental Glomerulosclerosis (FSGS)
What should you suspect if a nephrotic syndrome suddenly develops flank pain?
Suspect renal vein thrombosis secondary to hypercoagulable blood b/c loss of anticoagulants in urine (antithrombin III, protein C & S)
Diagnose: 30 yo F with thrombocytopenia, recurrent epistaxis, menorrhagia, and petechiae. Decreased plts only.
ITP
Tx: prednisone 1st line, then splenectomy
Diagnose: 20 yo F with recurrent epistaxis, menorrhagia, petechiae, NORMAL plts, increased bleeding time and PTT
VWD
Tx: dDAVP for bleeding or pre-op; replace Factor 8 (which contains vWF) if bleeding continues
Diagnose: 20 yo M with recurrent bruising, hematuria, hemarthroses, and increased PTT
Hemophilia
Tx: if mild, use dDAVP, otherwise replace factors
Diagnose: pt develops arterial clot 1 wk post-op. Her plts are 50% less than pre-op.
Heparin-induced thrombocytopenia (HIT)
Tx: stop heparin, reverse warfarin with Vit K
DDx of unprovoked thrombus
-CANCER
-OCPs or HRT
-nephrotic syndrome
-lupus anticoagulant
-protein c/s deficiency
-+Factor 5 Leiden gene
-Antithrombin III deficiency
What are examples of "great imitator" diseases? (diseases which can be confused with others and which feature nonspecific sx)
-cancer
-fibromyalgia
-MS
-systemic lupus erythematosus
-sarcoidosis
-Infectious diseases: Lyme disease, Syphilis, & Nocardiosis
-Celiac
-Addison's
-PE
Diagnose: pt with knee pain, DIP involvement, no swelling or warmth at joints, worse at the end of the day, crepitus
Diagnose: pt with knee pain, DIP involvement, no swelling or warmth at joints, worse at the end of the day, crepitus
OA
Diagnose: pt with arthritis at PIP and wrists bilaterally, worse in the AM, low grade fever
Diagnose: pt with arthritis at PIP and wrists bilaterally, worse in the AM, low grade fever
RA
Diagnose: pt with arthritis at DIP joints, rash with silvery scale on elbows and knees, pitting nails, and swollen fingers
Diagnose: pt with arthritis at DIP joints, rash with silvery scale on elbows and knees, pitting nails, and swollen fingers
Psoriatic arthritis
Diagnose: symmetric bilateral arthritis, malar rash, oral ulcers, proteinuria, thrombocytopenia. Arthritis is not erosive or have lasting sequelae.
SLE
Diagnose: Pt with acute swollen painful joint and aspirated fluid with needle-shaped, negatively birefringent crystals
Gout (monosodium urate crystals)
Acute and chronic tx of gout
Acute tx: indomethacin & colchicine (steroids if CKD)
Chronic tx: Allopurinol if overproduction of crystals, Probenecid if undersecretion of crystals
Diagnose: pt with acute swollen painful joint and aspirated fluid with rhomboid-shaped, positively birefringent crystals
Pseudogout (calcium pyrophosphate)
Tx: NSAIDs, colchicine, corticosteroids
Which Abs are most sensitive for SLE?
Anti-dsDNA and Anti-Smith
Abs positive in Sjogren's syndrome
Anti-Ro and Anti-La
Ab positive in CREST syndrome
Anti-Centromere
Abs positive in Systemic Sclerosis
Anti-Scl-70 and Anti-topoisomerase
What is CREST syndrome?
Limited cutaneous form of systemic scleroderma:
C - calcinosis
R - Raynaud's
E - esophageal dysmotility
S - sclerodactyly
T - telengiectasia
Name this skin sign of systemic disease (may indicate internal malignancy): explosive onset of multiple seborrheic keratoses
Name this skin sign of systemic disease (may indicate internal malignancy): explosive onset of multiple seborrheic keratoses
Sign of Leser-Trelat
Diagnose: pt has this skin finding and also has difficulty combing hair and getting up from a chair
Diagnose: pt has this skin finding and also has difficulty combing hair and getting up from a chair
Dermatomyositis features:
-heliotrope rash
-Gottron's papules
-periungal erythema
-proximal muscle weakness
Pruritic rash that begins on extremities, lasts 7-10 d, unknown cause
Pruritic rash that begins on extremities, lasts 7-10 d, unknown cause
Erythema multiforme
What is the Ddx of this skin findings (brown to black, poorly defined, velvety hyperpigmentation of the skin)
What is the Ddx of this skin findings (brown to black, poorly defined, velvety hyperpigmentation of the skin)
Acanthosis nigricans:
-occurs in individuals younger than age 40, may be genetically inherited, associated with obesity or endocrinopathies, such as:
- hypothyroidism or hyperthyroidism,
-acromegaly,
-polycystic ovary disease,
-insulin-resistant diabetes,
-Cushing's disease
Diagnose: 50 yo male presenting with blisters which become ulcerated in areas of the skin exposed to sunlight, especially on the face, ears and dorsum of the hands; his labwork shows iron overload
Diagnose: 50 yo male presenting with blisters which become ulcerated in areas of the skin exposed to sunlight, especially on the face, ears and dorsum of the hands; his labwork shows iron overload
Porphyria cutanea tarda:
-a genetic photosensitive skin disease with onset in adult life with substances called uroporphyrins in the urine due to a deficiency of uroporphyrinogen decarboxylase (UROD), an enzyme required for the synthesis of heme
-The hallmarks of porphyria cutanea tarda (PCT) are blisters which become ulcerated in areas of the skin exposed to sunlight
-Iron overload is frequently present in porphyria cutanea tarda and may be associated with varying degrees of damage of the liver
What is the precursor lesion of squamous cell carcinoma?
Actinic keratosis
What are the 4 subtypes of melanoma?
1. Superficial spreading (most common, best prognosis)
2. Nodular (poor prognosis)
3. Acral-lentiginous (palms, soles, mucous membranes, more prevalent in darker skin individuals)
4. Lentigo maligna (head & neck, good prognosis)
What is the #1 prognostic indicator for melanoma?
Breslow's depth: tumor thickness remains the most powerful prognostic indicator hence why it's critical to get a full-thickness biopsy
Most common pituitary adenoma?
Prolactinoma
-consider if pt presents with amenorrhea or hypothyroidism
Treatment of prolactinoma
1. Bromocriptine = dopamine agonist that decreases synthesis and secretion of prolactin; long track record and safety, dosed daily
2. Cabergoline = long-acting dopamine agonist, better safety and efficacy profile; convenience of twice-weekly administration
What are the causes of hypopituitarism? (mnemonic: 8 "I"s)
❏ Mnemonic: eight “I”s
• Invasive: generally primary tumours
• Infarction: e.g. Sheehan’s syndrome
• Infiltrative disease e.g. sarcoidosis, hemochromatosis, histiocytosis
• Iatrogenic: following surgery or radiation
• Infectious: e.g. syphilis, TB
• Injury: severe head trauma
• Immunologic: autoimmune destruction
• Idiopathic: familial forms, congenital midline defects
In hypopituitarism, what is the sequence of hormone loss?
A compressive adenoma in the pituitary will impair hormone production in this order (i.e. GH-secreting cells are most sensitive to compression)
Mnemonic: “Go Look For The Adenoma Please”
1. GH
2. LH
3. FSH
4. TSH
5. ACTH
6. Prolactin
Diagnose: pt presents with polyuria, polydipsia, hyperNa, and dilute urine
Diabetes Insipidus (lack of ADH)
How do you distinguish between central and nephrogenic Diabetes Insipidus.
Do a water deprivation test:
Central DI = urine osmolality still decreased after water deprivation test, but increases with administration of dDAVP
Nephrogenic DI = urine osmolality still decreased after water deprivation test and administration of dDAVP (1st line tx: HCTZ and amiloride to reduce flow to the ADH-sensitive distal nephron)
What are the 5 types of thyroid cancer?
1. Papillary = most common, characterized by psammona bodies on histology (round collection of Ca), spreads via lymphatic system, good prognosis
2. Follicular = hematogenous spread, more aggressive, must do total thyroidectomy
3. Medullary = associated with MENII (look for pheochromocytoma and hyperparathyroidism=hyperCa), amyloid on histology, secrets calcitonin
4. Hurthle cell
5. Anaplastic/undifferentiated = giant cells on histology, poor prognosis
7 "P"s of papillary thyroid carcinoma
PAPILLARY CANCER:
Popular (most common)
Psammoma bodies
Palpable lymph nodes (bc lymphatic spread)
Positive Iodine131 uptake
Positive prognosis
Postoperative Iodine131 scan to dx/tx metastases
Pulmonary metastases
3 "F"s of follicular thyroid carcinoma
FOLLICULAR CANCER:
Far-away metastasis (spreads hematogenously)
Female (3 to 1 ratio)
Favorable prognosis
4 "M"s of medullary thyroid carcinoma
MEDULLARY CANCER:
MEN II
aMyloid (histology)
Median lymph node dissection
Modified neck dissection if lateral nodes are positive
Diagnose: female pt presenting with osteoporosis, central obesity, diabetes, and hirsutism
Suspect Cushing's syndrome
Best screening test: 1 mg overnight dexa suppression test or 24h urine cortisol
If dexa test abnormal, next best test is 8 mg overnight dexa suppression
If suppression <50% of control = pituitary adenoma (Cushing's Disease)
If no suppression = either adrenal neoplasia OR ectopic ACTH (measure plasma ACTH, chest CT if smoker, abdo CT)
Diagnose: pt presenting with weakness, weight loss, hypotension, hyperpigmentation, hyperK, and hypoNa
Suspect adrenal insufficiency = main cause is Addison's Disease (autoimmune adrenal destruction)
Tx: long-term replacement of aldosterone (ie. with fluodrocortisone) and cortisol (ie. with hydrocortisone or prednisone), androgen replacement tx in women
ST elevation in II, III, aVF
RCA, inferior infarct
Diagnose: pt involved in MVA with whip-lash presents with loss of pain and temperature sensation on neck and arms and intact sensation
Diagnose: pt involved in MVA with whip-lash presents with loss of pain and temperature sensation on neck and arms and intact sensation
Suspect post-traumatic syringomyelia = CSF from the central spinal canal dissects into the surrounding white matter, forming a cystic cavity or syrinx
Diagnose: pt with chronic high cholesterol presents with acute onset of flaccid paralysis below the waist, loss of pain/temp with preserved vibration of position sense
Suspect anterior spinal artery occlusion (aka Beck's Syndrome)
-affects the spinothalamic tract (pain/temp) and corticospinaltract (motor), but not the dorsal columns (proprioception)
Suspect anterior spinal artery occlusion (aka Beck's Syndrome)
-affects the spinothalamic tract (pain/temp) and corticospinaltract (motor), but not the dorsal columns (proprioception)