Internal Medicine Rapid Review Flashcards
Right ventricular infarcts present with hypotension, tachycardia, clear lungs, JVD, and NO pulsus paradoxus. Don’t give nitro. How do you treat?
Vigorous fluid resuscitation
How often do you follow cardiac enzymes for suspected NSTEMI?
q8hrs x 3
In MI, _____ rises first, peaks in 2 hrs, and is normal by 24 hrs
______ rises within 4-8 hrs, peaks in 24 hrs, and is nl by 72 hrs
_______ rises within 3-5 hrs, peaks at 24-28 hrs, and is normal 7-10 days later
Myoglobin
CKMB
Troponin I
Discharge meds if cardiac stent is placed
ASA + clopidogrel for 9-12 mos
If pt presents with chest pain but there is no ST elevation and normal cardiac enzymes x3, what is the dx?
Unstable angina
Pt presents 5-10 wks after MI with pleuritic chest pain and low grade temp. You dx dresslers syndrome/autoimmune pericarditis. How do you tx?
NSAIDs and ASA
Systolic ejection murmur cresc/decresc, louder w/squatting, softer with valsalva, +parvus et tardus
Aortic stenosis
Systolic ejection murmur louder with valsalva, softer with squatting or handgrip
HOCM
Late systolic murmur with click louder with valsalva and handgrip, softer w/squatting
Mitral valve prolapse
Holosystolic murmur radiates to axilla w/LAE
Mitral regurg
Holosystolic murmur with late diastolic rumble in kids
VSD
Continuous machine like murmur
PDA
Wide fixed split S2
ASD
Rumbling diastolic murmur with opening snap, LAE, and afib
Mitral stenosis
Blowing diastolic murmur with widened pulse pressure and eponym parade
Aortic regurg
Causes of systolic heart failure
Viral EtOH Cocaine Chagas Idiopathic
Alcoholic dilated cardiomyopathy is reversible if you stop drinking
Diastolic heart failure etiologies
HTN
Amyloidosis
Hemachromatosis
Hemachromatosis restrictive cardiomyopathy is reversible with phlebotomy
Treatment for heart failure that prevents remodeling by aldosterone
ACE-I
Treatment for heart failure that improves survival by preventing remodeling by epi/norepi
Beta blockers (metoprolol and carvedilol)
Tx for heart failure that improves survival in NYHA class III and IV
Spironolactone
What do you do if you see pleural fluid >1cm on lateral decubitus xray
Thoracentesis
Dx if transudative pleural effusion with low pleural glucose
Rheumatoid arthitis
Dx if transudative pleural effusion with high lymphocytes
TB
Dx if transudative pleural effusion that is bloody
Malignant or PE
If pleural effusion has positive gram stain or culture, pH <7.2, or glucose <60, what do you do?
Insert chest tube for drainage
Light’s criteria indicates transudative pleural effusion if:
LDH < ______
LDH effusion:serum < _______
Protein effusion:serum < ______
200
- 6
- 5
Treatment for ARDS
Mechanical ventilation with PEEP
ARDS is diagnosed if PaO2/FiO2 ______ (<300 means acute lung injury), bilateral alveolar infiltrates on CXR, and PCWP is ______ (means pulmonary edema is noncardiogenic)
<200; <18
Indications to start O2 in COPD
PaO2 <55 or SpO2 <88%
If cor pulmonale, <59
Treatment for COPD exacerbation
O2 to 90%
Albuterol/ipratropium nebs
PO or IV corticosteroids
Fluoroquinolone or macrolide abx
Best prognostic indicator for COPD
FEV1
2 things shown to improve mortality in COPD
Quitting smoking
Continous O2 therapy >18 hrs/day
2 important vaccines for COPD ptss
Pneumococcal w/ 5 year booster
Annual flu
COPD pt presents w/6 wks of clubbing fingers and you diagnose hypertrophic osteoarthropathy. What is the next best step?
CXR
[most likely cause is underlying lung malignancy]
How do you treat asthma if pt has sxs twice a week and PFTs are normal?
Albuterol only
How do you treat asthma if pt has sxs 4x a week, night cough 2x a month, and PFTs are normal?
Albuterol + inhaled CS
How do you treat asthma if pt has sxs daily, night cough 2x a week and FEV1 is 60-80%?
Albuterol + ICS + LABA (salmeterol)
How do you treat asthma if pt has sxs daily, night cough 4x a week and FEV1 is <60%?
Albuterol ICS LABA (salmeterol) Montelukast Oral steroids
Restrictive lung disease with 1 cm nodules in upper lobes w/eggshell calcifications
Silicosis
Get yearly TB test and give INH for 9 mos if >10mm
Restrictive lung disease with reticulonodular process in lower lobes w/pleural plaques
Asbestosis
[most common ca is bronchogenic carcinoma but increased risk for mesothelioma]
Restrictive lung disease with patchy lower lobe infiltrates, thermophilic actinomyces
Hypersensitivity pneumonitis (farmers lung)
Adenocarcinoma of the lung exhibits exudative effusion with elevated ____
Hyaluronidase
Pt presents with weight loss, hemoptysis, kidney stones, constipation, malaise, low PTH, and central lung mass. Dx?
Squamous cell carcinoma
Pt with lung mass, shoulder pain, ptosis, constricted pupil, and facial edema dx?
Superior sulcus syndrome from small cell carcinoma
Old smoker presenting w/ Na of 125 with moist mucous membranes and no JVD
SIADH from small cell carcinoma
CXR showing peripheral cavitation and distant mets?
Large cell carcinoma
IBD involving terminal ileum and associated with iron deficiency
Crohns
IBD continuous involving rectum
Ulcerative colitis
IBD at increased risk for PSC
Ulcerative colitis; increased risk of cholangiocarcinoma
IBD most likely to fistulize, how to tx
Crohns; give metronidazole
IBD with granulomas and transmural inflammation on bx
Crohn’s
Smokers have lower risk of what IBD?
Ulcerative colitis
Which IBD has higher risk for colon ca?
Ulcerative colitis
Which IBD is associated with p-ANCA?
Ulcerative colitis
AST and ALT in the 1000s after surgery or hemorrhage
Ischemic hepatitis (shock liver)
Elevated direct bili
Obstructive (stone/cancer), Dubin johnson, rotor
Elevated indirect bili
Hemolysis, gilberts, crigler najjar
Elevated alk phos and GGT
Bile duct obstruction
If pt has IBD, think PSC
Elevated alk phos, normal GGT, normal calcium
Paget’s disease (increased hat size, hearing loss, HA) — tx with bisphosphonates
Primary biliary cirrhosis is associated with ____ abs and is treated with _____
Antimitochondrial; bile resins
Elevated LFTs, ANA positive, anti-smooth muscle ab positive
Autoimmune hepatitis - tx with steroids
3 most common bugs causing meningitis
S.pneumo
H.flu
N.meningitidis
Tx for meningitis
Ceftriaxone and vanc
Lysteria can cause meningitis in old and young — how to tx?
Ampicillin
Staph can cause meningitis in pts with brain surg, how to tx?
Vanc
Tx of TB meningitis
RIPE + steroids
Tx of Lyme meningitis
Ceftriaxone IV
MCC of PNA in healthy young ppl; assoc with cold agglutinins
Mycoplasma
Tx with macrolide, FQ, or doxy
Pseudomonas, klebsiella, e.coli, MRSA are causes of hospital acquired PNA — how to tx?
Pip/tazo or imipenem + vanc
Cause of PNA in old smokers with COPD
H.flu — tx with 2nd-3rd gen cephalosporin
Cause and tx of PNA in alcoholics with currant jelly sputum
Klebsiella; tx w/ 3rd gen cephalosporin
Cause and tx of PNA in old men w/HA, confusion, diarrhea, and abd pain
Legionella; dx with urine Ag
Tx with macrolide, FQ, or doxy
Tx for PNA in someone who just had the flu
Vanc (for MRSA)
Pt with PNA that just delivered a baby cow and is now having vomiting and diarrhea
Q-fever — coxiella burnetti
Tx with doxy
Pt with PNA w/ rabbit exposure
Francisella tularensis
Tx with streptomycin, gentamycin
TB screening guidelines in following groups:
Regular ppl
Prison, healthcare, nursing home, DM, etoh, chronically ill
AIDS, immunosuppressed
> 15 mm
> 10 mm
> 5 mm
Workup for positive PPD
CXR
If CXR positive, do acid fast stain of sputum
Tx with RIPE for 6 mo (12 for meningitis and 9 if preggo)
RIPE drug that causes orange body fluids and induces CYP450
Rifampin
RIPE drug that causes peripheral neuropathy, sideroblastic anemia, and hepatitis
INH
RIPE drug that causes benign hyperuricemia
Pyrazinamide
RIPE drug that causes optic neuritis and color vision abn
Ethambutol
Number one cause of death in endocarditis
CHF
Other complication is septic emboli to lungs/brain
Tx for strep viridans endocarditis
PCN x4-6 wks
Tx for staph endocarditis
Nafcillin + gent or vanc
Pt with endocarditis and strep bovis bacteremia — next step?
Colonoscopy
Young pt with new/bilateral bells palsy. What do you suspect
HIV
Post exposure ppx for HIV
AZT
Lamivudine
Nelfinavir
X4weeks
When do you start HAART for HIV?
When CD4 <350 or viral load >55,000
HIV tx that causes GI sxs, leukopenia, macrocytic anemia
Zidovudine
HIV tx that causes pancreatitis and peripheral neuropathy
Didanosine
HIV tx that causes HS rash, fever, n/v, myalgia, SOB in first 6wks
Abacavir
HIV tx that causes nephrolithiasis and hyperbilirubinemia
Indinavir
HIV tx that causes somnolence, confusion, psychosis
Efavirenz
HIV pt with PCP PNA. Best test after CXR?
Bronchoscopy wtih BAL
1st line tx for PCP PNA in HIV pt
TMP SMX
2nd line is TMP-dapsone or primaquine-clinda or pentamidine
HIV pt with PCP PNA being tx with abx. When do you add steroids?
When PaO2 <70, A-a gradient >35
Ppx for PCP PNA when HIV pt has CD4<200
1st = TMP-SMX 2nd = atovaquone 3rd = dapsone 4th = aerosolized pentamidine (causes pancreatitis!)
HIV pt with MAC having diarrhea, wasting, fevers, night sweats. Tx?
Clarithromycin and ethambutol +/- rifampin
Prophylax with azithromycin when CD4<50
HIV pt with multiple ring enhancing lesions is dx with toxo. Tx?
Empiric pyramethamine sulfadiazine (+folic acid) for 6 wks
HIV pt with one ring enhancing lesion
CNS lymphoma (assoc with EBV) tx with HAART
HIV pt with seizures w/deja vu aura and 500 rbcs in CSF
HSV encephalitis (temporal lobe) give acyclovir
HIV with s/s meningitis and +india ink
Crypto — tx with ampho IV x2 weeks then fluconazole maintenance
HIV pt with hemisensory loss, visual impairment, babinski+, what do you do?
Brain bx
Think PML - JC polyomavirus demyelinates grey-white jxn
Workup for neutropenic fever
- Get blood culture
- Start 3rd or 4th gen cephalosporin (ceftazidime or cefepime)
Add vanc if line infx suspected or septic shock develops
Add ampho B if no improvement and no source found in 5 days
Target rash, fever, VII palsy, meningtis, AV block
Lyme disease
Tx with doxy (amox for <8); heart or CNS dz needs IV ceftriaxone
Rash at wrists and ankles (palms and soles) fever, and HA
Rickettsia
Tx with doxy
Tick bite, no rash, myalgias, fever, HA, decreased plts and WBC, increased ALT
Erlichiosis
Dx with morulae intracell inclusion
Tx with doxy
Immunosuppressed, cavitary lung lesion, purulent sputum, wt loss, fever, gram positive aerobic branching partially acid fast
Nocardia
Tx with TMP SMX
Neck or face infxn w/ draining yellow material with sulfur granules gram positive anaerobic branching
Actinomyces
Tx with high dose PCN for 6-12 wks