Medicine Shelf Exam Flashcards
Goodpastures Disease
Young adult male, nephritic proteinuria, acute renal failure, urinary sediment w/ dysmorphic RBC.
Caused by Antibodies to alpha-3 chain of type IV collagen in alveolar and glomerular basement membranes. LUNG AND RENAL SXS, hemoptysis
Renal biopsy shoes linear IgG deposition along BM. Systemic sxs uncommon.
Pneumocystic pneumonia
PCP – HIV w/ CD4
Which electrolyte needs to be corrected in alcoholics in order to successfully fix hypokalemia?
Magnesium
Sxs of hypophosphatemia
weakness, rhabdo, paresthesias, respiratory failure
Common electrolyte abnormalities in alcoholics
low K low Mg, low hosphate. Hypomag causes refractory hypoK.
Complications of PEEP?
Alveolar damage, tension pneumo, hypotension when high pressure applied.
What is atelectasis?
all or part of a lung becomes airless/ collapes
Organisms implicated in epiglottitis?
H flu and Strep pyogenes (GAS)
What is a hazard ratio?
ratio of event rate occurring in treatment arm versus non treatment arm. Ratio less than one means tx arm had lower event rate.
What is factorial design study?
Two or more experimental interventions each w/ two or more variables studied independently.
Most common side effect of radioiodine therapy for graves?
Hypothyroidism. Like 80 percent get it.
Also worsening opthalmopathy is bad too. Can be prevented w/ corticosteroid tx before and after.
tx for stable chronic angina?
Beta blocker FIRST LINE - reduce myocardial oxygen demand
Ca blocker can combine w/ beta blocker if angina persists. Causes peripheral and coronary vasodilation.
Nitrates; ACUTE
Pr
Preventive tx w/ angina?
aspirin, statin, smoking cessation, BP and DM control, exercise weight loss
Conditions associated w/ Erythema Nodosum?
Recent strep infx, sarcoidosis, TB, histoplasmosis, IBD. Sarcoid most common in AA women.
What is erythema nodosum?
painful subQ nodule on anterior surface of lower legs
Things associated w/ sarcoidosis?
Cough arthritis, uveitis, hilar adenoathy, and erythema nodosum (shin lesions)
What is thyrotoxicosis?
increased thyroid hormone w/ suppressed TSH, radioactive iodine uptake in nodule. Toxic adenoma
What causes molluscum?
poxvirus. Usually skin colored papules w/ central pit
How do viral URI and influenza present differently?
Flu usually starts abruptly, URI is stepwise. Flu has myalgias, posssible fever, HA.
Nitroglycerin MOA?
Dilation of veins (capacitance vessels) this decreases preload and decrease heart size, decrease oxygen requirement of the heart. Can alsy dilate arteries but less significant for anginal pain.
sxs of zinc deficiency?
aloecia, abnormal taste, bullous, pustulous leasions surrounding body orifices or extremities, impaired wound healing
Celiac sxs?
diarrhea, weight loss, fatigue, can lead to malabsorption of vitamin D, K , B12, folate, calcium, zing
vitamin a deficiency?
blindness, dry skin, imaired immunity
sxs of selenium deficiency?
cardiomyopathy