Medicine Flashcards
What is the most common cause of interstitial nephritis?
Medications, with penicillins, cephalosporins, sulfonamides (such as trimethoprim-sulfamethoxazole), and NSAIDs being among the top offenders
What are the signs/symptoms of interstitial nephritis?
Fever
Rash
Increased Cr
Eosinophiluria, WBCs, white blood cell casts
What is the most common mechanical complication following an MI?
Ventricular free wall rupture
What is the difference between simple febrile and complex febrile seizures?
Simple: last less than 15 minutes, occur once during a single illness, and are non-focal
Complex: prolonged, recurrent (with more than one seizure during an acute illness), or focal
Gemfibrozil (used to treat hypertriglyceridemia) use is contraindicated in patients with what disease?
Biliary disease
Patients with HIV infection, a CD4 count of < 100 cells/µL, and Toxoplasma gondii IgG antibodies should be treated with what antibiotic as prophylaxis against reactivation?
Trimethoprim-sulfamethoxazole (bactrim)
What condition is associated with low-output heart failure?
Dilated cardiomyopathy
What qualifies for a diagnosis of infertility?
Women < 35: 12 months of unprotected and appropriately timed intercourse has not resulted in conception
Women > 35: 6 months without conception
What labs are typically seen in pts with oligoarticular juvenile rheumatoid arthritis (oligoarticular juvenile idiopathic arthritis (JIA))?
Neg RF and positive ANA
What is the most common complication of oligoarticular juvenile idiopathic arthritis (JIA)?
Uveitis
What are the signs/symptoms of HELLP syndrome in pregnant women?
H: hemolysis (LDH > 600)
E: elevated
L: liver enzymes (AST/ALT > 2x ULN)
L: low
P: platelet count (<100,000)
Do pregnant women have to have HTN and/or proteinuria to be diagnosed with HELLP syndrome?
No
What disorder is most common in children (boys > girls) between the ages of 4 and 8 and is characterized by loss of abduction, painless limp, and radiographic findings consistent with avascular necrosis?
Legg-Calvé-Perthes disease
What is the most concerning complication of a scaphoid fracture?
Avascular necrosis
What condition can show a right axis deviation on an EKG?
Pulmonary hypertension
What is the most common electrocardiographic finding in the setting of a pulmonary embolism?
Sinus tachycardia
What test is highly specific in the clinical setting of suspected Guillain-Barré syndrome (GBS)?
Elevated protein with only a mild pleocytosis on cerebrospinal fluid analysis (albuminocytologic dissociation)
What are the signs/symptoms of Guillain-Barré syndrome (GBS)
Symmetric lower extremity weakness
Decreased or absent deep tendon reflexes
Little or no sensory involvement
Follows a respiratory or GI infection by weeks to days
If a patient presents with a nosebleed that has continued for longer than 10 mins, what is the next step in treatment?
Apply oxymetazoline with a gauze pledget
What is duodenal atresia?
A congenital abdominal obstruction due to failure of the duodenum to recanalize in early fetal development
How does duodenal atresia classically present on ultrasound/x-ray?
Double bubble appearance
Patients with multiple myeloma are at an increased risk for what electrolyte disturbance?
Hypercalcemia secondary to increased breakdown of bone
How does essential tremor differ from the tremor of Parkinson disease?
Essential tremor: symmetric and exacerbated by action
Parkinson disease: asymmetric and occurs at rest
What is described as “continuous PVCs”, or more specifically, consecutive, fast, large and wide QRS complexes on EKG?
Ventricular tachycardia
What is recommended for long-term secondary stroke prevention for noncardioembolic transient ischemic attack and ischemic stroke?
Aspirin
What is seen on x-ray of an infant with tetralogy of Fallot (TOF)?
“Boot-shaped” heart with an upturned apex and a concave main pulmonary artery segment and a lack of vascular congestion (no engorgement of pulmonary vessels)
What is the preferred study to diagnose cauda equina syndrome?
Lumbar spine MRI scan
What are the signs/symptoms of acute myeloid leukemia (AML)?
More common in adults in 60s
Fever, fatigue, anemia, bleeding, hx infections, bone and joint pain
Petechiae, bruising, hepatosplenomegaly
Labs: leukocytosis; normocytic, normochromic anemia; thrombocytopenia; myeloblasts; Auer rods
What is considered to be a positive TB skin test (Mantoux test) in otherwise healthy, immunocompetent adults?
≥ 15 mm induration
What is first-line therapy for tinea corporis (ring worm)?
Topical azoles such as topical clotrimazole
What tumor marker is elevated in testicular cancer?
Serum alpha-fetoprotein
What type of hemorrhage results in a rapid progression of hemiplegia, nausea, vomiting and headache over 30 minutes, which is quickly followed by ipsilateral deviation of the eyes, stupor, coma and mydriatic pupils (“blown-pupil”, associated with brainstem compression and oculomotor nerve palsy)?
Putamen
When should tetanus immune globulin (TIG) be given?
If unclear or unknown previous vaccination: Tdap (low-risk wounds), Tdap and TIG (high-risk wounds)
Lab readings for Hep B
HBsAg: active infection
Anti-HBs: recovered or immunized
Anti-HBc IgM: early marker of infection, positive in window period
Anti-HBc IgG: best marker for prior HBV
HBeAg: high infectivity
Anti-HBeAb: low infectivity
What is the treatment for migraines?
Abortive: triptans, DHE, antiemetics, NSAIDs
Triptans, DHE: avoid in those with uncontrolled HTN or CV disease
Prophylaxis: TCAs, beta-blockers, anticonvulsants (valproic acid, topiramate), CCBs
What medications are used to treat vertigo due to labyrinthitis?
Corticosteroids
What are the signs/symptoms of myasthenia gravis?
Ocular or generalized muscle weakness, bulbar weakness (dysarthria, dysphagia), ptosis and diplopia that is worse at the end of the day or following exertion
PE: applying ice pack to eyelid improves diplopia, normal deep tendon reflexes
What is the most common cause of acute pancreatitis worldwide?
Gallstones
Salter-Harris Fractures
SALTER
I: slipped epiphysis
II: fracture above physis, most common
III: fracture below physis
IV: fracture through physis
V: erasure of the growth plate
What is dacryocystitis?
Pain, swelling, warmth, and erythema of the lacrimal sac area
Purulent drainage can be expressed from the lacrimal duct
Usually secondary to obstruction of the nasolacrimal system
What is the most common cause of dacryocystitis?
Staphylococcus aureus
What is the concentration and dose of intravenous epinephrine in an infant with cardiac arrest?
0.1 mL/kg of 1:10,000 concentration
What is the most common cause of verruca vulgaris (warts)?
HPV
Common warts commonly caused by HPV 2 & 4
What is the treatment for dacryocystitis?
Oral abx
What is a physical examination finding specific for an L5-S1 herniated nucleus pulposus?
Weak plantar flexion of the foot
What is the clinical presentation of Niacin (B3) deficiency?
Pellagra: dermatitis, diarrhea, and dementia
What is the treatment for aortic dissection?
Reduce BP and HR (beta-blockers)
Pain control
Emergency surgery (type A dissection)
What are the signs/symptoms of ALL?
Sx: fatigue, fever, hx infections, bleeding, bone pain
PE: lymphadenopathy, hepatosplenomegaly, bruising, petechiae
Labs: anemia, thrombocytopenia, lymphoblasts, Philadelphia chromosome [t(9:22)] (in some B-cell subtypes)
What is the change that occurs in a patient diagnosed with Barrett’s esophagus?
From stratified squamous epithelium to columnar-lined epithelium with goblet cells
What is the gold standard in the diagnosis of acute angle closure glaucoma?
Gonioscopy
What is the treatment of choice in asymptomatic patients with chronic hyperphosphatemia?
Phosphate binder (sevelamer)
Passive flexion of a patient’s neck that causes a reflexive flexion of his hips and knees is called what?
Brudzinski sign (meningitis)
A patient who overdoses on aspirin would be expected to have what acid/base changes?
Respiratory alkalosis (due to tachypnea) with a metabolic acidosis
Cardiac arrhythmias with premature beats
PVC: Early wide bizarre QRS, no p wave seen
PAC: abnormally shaped P wave
PJC: Narrow QRS complex, no p wave or inverted p wave
What is the difference between A. fib and A. flutter?
A. fib: Irregularly irregular rhythm with disorganized and irregular atrial activations and an absence of P waves
A. flutter: Regular, sawtooth pattern and narrow QRS complex
How is V. fib described?
Erratic rhythm with no discernable waves (P, QRS, or T waves)
What are the treatment options for CHF?
Systolic: ACEI +BB + loop diuretic + spironolactone
Diastolic: ACEI + BB or CCB
What are the classic signs of endocarditis?
Osler’s nodes
Janeway lesions
Roth Spots on retina
Splinter hemorrhages on nail beds
Clubbing
What is the treatment for endocarditis?
Empiric treatment: IV vancomycin or ampicillin/sulbactam PLUS aminoglycoside
Prosthetic valve: Add rifampin
High-Risk pts prophylaxis for procedures: Amoxicillin - 2 g 30-60 minutes before the procedure
Systolic heart murmurs
Mitral regurgitation -
Increased atrial pressure/dilation
Most common cause: MVP
Manifestations: dyspnea, HTN, A fib
PE: holosystolic murmur @ apex that radiates to axilla
TX: surgery
Tricuspid regurgitation -
Only severe causes issues
Pretty common
Causes: Ebstein anomaly, infective endocarditis
Manifestations: usually asymptomatic
PE: holosystolic murmur @ LLB
TX: surgery: diuretics for fluid overload
Aortic stenosis -
Can lead to LV hypertrophy & HF
Most common valvular disease
Manifestations: angina, syncope, HF (these are late stage)
** Dyspnea on exertion *
PE: crescendo-decrescendo @ RUSB, radiates to carotids, pulsus parvus et Tardus (weak, late pulses)
TX: valve replacement definitive
Pulmonary stenosis -
Commonly assoc w. Tetralogy of Fallot, Congenital Rubella Syndrome, & Noonan syndrome
Manifestations: usually asymptomatic, mild exertional dyspnea/ other sx of R sided HF
PE: crescendo-decrescendo @ LUSB → can radiate to neck, increases w/ inspiration
TX: mild -mod: observe, mod-severe: surgery
Mitral valve prolapse -
Most common cause of mitral regurg
** Marfans, Ehlers-Danos
Manifestations: usually asymptomatic
MVP syndrome: anxiety, palpitations, dizziness
PE: mid-late systolic ejection click
Raises legs → decrease in murmur w/ late click
TX: asymptomatic → reassurance; severe → surgery
Diastolic heart murmurs
Mitral stenosis -
* most common cause: rheumatic heart dz
Manifestations: A fib, hoarseness, mitral facies (if severe)
PE: rumbling @ apex opening snap
TX: balloon valvuloplasty
Tricuspid stenosis -
Usually d/t some underlying condition
Manifestations: fatigue, dyspnea
PE: diastolic @ LLB opening snap
TX: surgery
Aortic regurg -
Chronic: rheumatic heart dz
Acute: endocarditis, aortic dissection, acute MI
Manifestations: angina, dyspnea, HF sx
PE: high pitched decrescendo @ LUSB, bounding pulses, Quinke’s pulses (fingertips & nailbeds)
TX: surgery
Pulmonary regurg -
Can lead to R sided HF
Manifestations: usually asymptomatic
PE: decrescendo @ LUSB
Increases w/ inspiration, Graham Steell murmur
TX: observe & tx underlying cause
Hypertension is defined as what?
BP > 130/80
What is the treatment for HTN?
Lifestyle modifications (heart healthy diet, smoking cessation, exercise, stress reduction)
Pharm tx:
→ start for pts 18-60 yo w/ BP ≥ 140/90 or pts >60 w/ BP ≥150/90
Specific populations:
→ DM & nonblack population: thiazides, CCBs &/or ACEi or ARB
→ black population: thiazide &/or CCB
→ CKD: ACEi/ARB
Stage 1: start w/ single medication
Stage 2: start w/ 2 medications
Uncontrolled: titrate pre-existing medication to max dose before adding another med
What is Dressler’s syndrome?
Pericarditis 2-5 days after an acute MI
What is the step-wise treatment for asthma?
Intermittent (step 1): daytime sx up to 2d/wk, nocturnal awakenings up to 2x/mo., normal FEV1, ≤1 exacerbation/yr
PRN SABA (albuterol, levalbuterol)
If identifiable triggers, can pretreat w/ SABA or budesonide-formoterol inhaler ~5-20 min before exposure
Mild persistent (step 2): daytime sx 2-6d/wk, 3-4 nocturnal awakening/mo., minor interference w/ activities, FEV1 normal, 2+ exacerbations per year
Daily low dose inhaled ICS, PRN SABA
Moderate persistent (step 3): daily sx, >1 nocturnal awakenings per wk, daily need for SABA, FEV1 60-80%, 2+ exacerbations per year
1st line: combo low dose ICS + LABA (Budesonide-formoterol) that can be used up to 12x/day or add a PRN SABA
Severe persistent (step 4 or 5): sx all day, nightly awakenings, SABA needed several times/day, extreme activity limitation, FEV1 ≤60%, 2+ exacerbations per year
Step 4: combo medium dose ICS-formoterol daily w/ use up to 12x/day
Step 5: high dose steroid-LABA combo OR med to high dose ICS-LABA plus LAMA daily & SABA as needed (preferred)
What is Samter’s triad?
Aspirin induced asthma
samter’s triad: pt w/ hx of asthma, inflamm of sinuses, & recurrent nasal polyps
What are the GOLD grades for COPD?
1: FEV1 ≥ 80% pred.
2: FEV1 50-80% pred
3: FEV1 30-50% pred
4: FEV1 ≤30% pred
What is the treatment for COPD?
Exacerbation tx:
Continue SABA q4-6hrs PRN
Start abx (augmentin, doxy, or bactrim)
Start steroid burst (40-60mg prednisone x 5days)
Chronic tx :
SMOKING CESSATION most effective
O2 is the only therapy that impacts natural history (indicated w/ O2 sat ≤88%)
GOLD 1 or 2 w/ 0-1 exacerbations: SABA or LABA
GOLD 3 or 4 w/ 2+ exacerbations: LABA/ICS &/or LAMA
What disease process is often described as reticular honey- combing and focal ground glass opacification on CT scan?
Pulmonary fibrosis
What shows bilateral hilar lymphadenopathy on CXR and noncaseating granulomas on tissue biopsy and is commonly seen in African American women 20-40 yo?
Sarcoidosis
What is used to determine prognosis of pancreatitis?
Ranson criteria
What is the most common colorectal cancer?
Adenocarcinoma
When do you start screening patients for colorectal cancer?
45 yo OR 10yrs prior to onset of fam member’s cancer
What is Charcot’s triad and Reynold’s pentad?
Charcot’s triad: fever, RUQ pain, & jaundice
Reynold’s pentad: charcot’s + shock & AMS
Seen in cholangitis
What are the signs/symptoms of cirrhosis?
General sx: weakness/ fatigue, wt loss, anorexia, muscle cramps,
abd pain
Upper GI tract bleeding (varices, ulcers, etc)
PE: ascites, gynecomastia, hepatosplenomegaly, spider angiomas, caput medusa, muscle wasting
What is the treatment for esophageal varices?
Management of acute variceal bleed:
Stabilize pt: 2 large bore IVs, fluids
Endoscopic interventions: variceal ligation initial TOC
Pharm: octreotide 1st line
Best if octreotide + ligation
Abx prophylaxis: FQ or ceftriaxone given to prevent infectious complications
Prevention of rebleed: nonselective BBs (propranolol)
What is the 1st line treatment for eosinophilic esophagitis?
PPI
What is the triple therapy treatment for gastritis?
PPI, amoxicillin, & clarithromycin BID for 7-10 days
What is the treatment for gastroenteritis?
Fluid & electrolyte replacement
BRAT diet (bananas, rice, applesauce, toast)
Antiemetic: phenergan, zofran
Antidiarrheal: don’t use imodium in c diff → increased risk of toxic megacolon
Traveller’s diarrhea: empiric w/ ciprofloxacin 500mg/day x 3days
C diff: fidaxomicin $$$ or vanc as alternative
Recurrent infxn: fidaxomicin standard/pulsed regimen
multiple recurrences vanco regimen, vanc followed by rifaximin, FECAL MICROBIOTA TRANSPLANT
What is the most common cause of upper GI bleeding?
Peptic ulcer disease
What is the treatment for ulcerative colitis?
Mild: Mesalamine, avoid NSAIDs
Moderate-severe: IV methylprednisolone or oral prednisone in flares
What medication can be given to help increase the elimination of aspirin from the body in pt’s who have attempted to OD?
Sodium bicarbonate
What are the characteristics of Gilbert syndrome?
Patient presents with intermittent yellowing of the eyes
Labs will show a transient rise in unconjugated bilirubin
Most commonly caused by an inherited deficiency in uridine diphospho-glucuronosyltransferase
Treatment is supportive care and reassurance
When testing pleural effusion fluid, what does a pleural fluid:serum protein ratio > 0.5 indicate?
An exudative effusion consistent with an infectious cause
What is cervical spondylotic myelopathy?
A clinical syndrome of spinal cord dysfunction caused by narrowing of the cervical spinal canal from degenerative changes to the vertebral bodies and intervertebral disks, which result in compression of the cervical spinal cord
What are the signs/symptoms of cervical spondylotic myelopathy?
Pain
Sensory dysfunction (numbness or paresthesias)
Motor weakness
Abnormal deep tendon reflexes
Gait impairment
Bladder dysfunction
Symptoms usually have an insidious onset
What are the 2 major groups of local anesthetics?
Amides and benzoic acid esters
How can you tell the difference between an amide and an ester local anesthetics?
Esters: a single letter I in their generic names (e.g., benzocaine, novocaine), Amides: two I’s in their name (e.g., lidocaine, bupivacaine, mepivacaine, and prilocaine)
What medication is recommended by the New York Heart Association (NYHA) for class III-IV heart failure and an ejection fraction less than 35%?
Spironolactone
What changes are seen on EKG in patients with pericarditis?
Diffuse ST segment elevation (except for aVR and V1 which will show reciprocal ST depression and PR elevation)
What condition can alter the appearance of the arterial blood and make it appear chocolate colored?
Methemoglobinemia
What is the treatment for methemoglobinemia, aside from respiratory support?
Methylene blue
What is the gold standard test used to diagnose gout, and what will it show?
Synovial fluid analysis: needle shaped crystals & (-) birefringent
What will be seen on synovial fluid analysis in a patient who has pseudo-gout?
Rhomboid shaped crystals & (+) birefringence
What is the 1st line treatment for reactive arthritis?
NSAIDs
What diagnosis should you suspect if a patient presents with arthritis and recent urethritis or diarrheal illness?
Reactive arthritis
If a pt requires abx for an underlying infection in reactive arthritis, how long is the treatment?
3-6 months
What is a gene that is commonly associated with RA?
HLA-DRB1