usmle-review.org
USMLE Drug Bank
http://www.usmle-review.org/drug-bank.php
Drug Bank is a database of all the drugs learned in medical school. Entries include one phrase summaries of treatment, mechanism, side effects, odd facts.
usmle-review.org
Acknowledgement
http://www.usmle-review.org/acknowledgement.php
Thanks to UNC School of Medicine.
usmle-review.org
Hemonc - USMLE Review
http://www.usmle-review.org/hemonc.php
Hb- ): fatigue because Hb- . Underproduction): low retic anemia. Malnutrition): lack Folate, B12 (neuro). Macrocytic anemia, Hx of EtOH, diet lacking vegees, dx w serum homocysteine↑, folate↓. Cobalamine): macrocytic anemia neuro, Hx of being vegetarian, malabsorptive dz (Crohn, bypass), dx w homocysteine↑ methylmalonic acid↑, B12↓. Pica): pica, microcytic anemia with low ferritin. Infection, fatigue, low blood Fe, high stored Fe (ferritin), don't want Fe (TIBC↓). Spectrin): weak membrane - spheres - lyse.
usmle-review.org
Renal - USMLE Review
http://www.usmle-review.org/renal.php
136): Low blood sodium (Na. Orthostatic hypotension, BUN↑, but normal creatinine. Sweat/diarrhea: lose both Na and H2O (initially Na ), but compensation makes Na- (drinking, ADH). Exertional dyspnea, JVD, peripheral edema, elevated BNP, can be chronic or acute decompensated. Portal hypertension (varices, splenomegaly), skin (jaundice, spider angiomata, palmar erythema), ascites, coagulopathy, hx of EtOH, hepatitis, LFTs↑, dx w US and biopsy. Small cell lung carcinoma. U-wave): not enough extracellular K (.
usmle-review.org
Antibiotics - USMLE Review
http://www.usmle-review.org/antibiotics.php
TMP,): Tx: UTI. Mech: DHF analogue = inh DHFR = anti-THF = inh dTMP synth. SE: anti-folate (megalobastic anemia), for pts tx w PCP (rash, hepatitis). Fact: combine w sulfonamides (TMP/SMZ). SMZ,): Tx: toxoplasmosis. Mech: PABA analogue = inh pteroate synthase = anti-folate = inh DNA synth. SE: blood dz (WBC↓, plt↓), kernicterus, rash, inh P450. Tx: broad spec (pneumonia, UTI w pseudo aer, enteritis). Mech: inh DNA gyrase/topo II, topo IV. SE: tendon rupture, MRSA, C diff. Fact: the -floxacins. Tx: otitis...
alphasolver.com
Physics Solver for Ideal gases
http://alphasolver.com/physics/gases.php
Physics - Gases - Problems with Solutions and Tutorials. There are 300 mL of gas in your bowels. You decide to take an after-dinner bath, which raises your temperature from 37 C to 40 C. How many mL of gas do you have now? Solver Input: Vi=300mL,Ti=37C,Vf=? Answer: 6.8 psi. Solver Input: Ti=37C,Vi=300mL,P gaugei=3.14psi,Tf=38.5C,Vf=250mL,P gaugef=? How many molecules of O2 is that? How many kg is that? Answer: n=3734 mol, N=2.25e 27, m=119 kg. Solver Input: V=660L,P=2000psi,T=20C,M=32g/mol,n=?
alphasolver.com
Physics Solver for Hydrostatic Pressure Problems
http://alphasolver.com/physics/hydrostatic.php
Physics - Mechanics - Problems with Solutions and Tutorials. You are swimming at the 2m deep end of the pool when you dropped your locker key. If you dive to the bottom, how much pressure in psi pushes against your eardrums? Your eardrum ruptures at 5 psi. How deep can you dive before the pressure reaches 5 psi? At 5 psi, how much force pushes on your eardrum, which has an area of 0.55 cm 2? Answer: At 2m, P=2.8psi. At 5 psi, h=3.5m. At 5 psi, F on your eardrum is 2N. Solver Input: see tutorial video.
alphasolver.com
Physics Solver for Collision / Conservation of Momentum Problems
http://alphasolver.com/physics/collisions.php
Physics - Collisions - Problems with Solutions and Tutorials. A 272 kg ball travels at 9.81 m/s, a 3.14 kg ball travels in the opposite direction at 8.31 m/s. They collide head on. After the collision, the 2.72 kg ball rebounds with a speed of 8 m/s. What is the speed of the other ball? Answer: 7.12 m/s. Solver Input: see tutorial video. Answer: v=3.46 ft/s, theta is 17 degrees N or W (163 degrees CCW). Solver Input: see tutorial video. Answer: 1.77 m/s. Solver Input: see tutorial video. Two balls travel...
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