Hard numbers/concepts Flashcards
PEN, Cephs, and Vanc (glycopeptides) inhibit what?
Cell wall synthesis
Tetracyclines and Aminoglycosides act on what?
30s subunit ribosome
Macrolides and lincosamides act on what?
50s subunit ribosome
FQ and nitromidazoles (metro) act on what?
DNA
Septra inhibits what?
Folate
Rifampin has what ADR’s?
Red lobster syndrome (dye) and Hepatitis
Isoniazid has what ADR’s?
Peripheral neuropathy and hepatitis
Isoniazid’s peripheral neuropathy is prevented with what medication?
B6/Pyridoxine
Pyrazinamide has what ADR?
Polyarthralgia (tx = NSAID)
Ethambutol has what ADR?
Optic neuritis and loss of red-green color vision . E for Eye.
What is Samter’s Triad (ASA triad) and why does it matter?
Atopy/asthma, Nasal polyps, Aspirin allergy
What scores can be used for UA/NSTEMI?
Heart or TIMI
How do you monitor heparin? What about warfarin?
Heparin = aPTT, Warfarin = PT/INR
How do you reverse heparin? Warfarin?
Protamine sulfate. Vitamin K or Fresh Frozen Plasma
What is Beck’s Triad? What other signs are seen in pericardial tamponade?
Becks = hypotension, muffled heart sounds, JVD
Narrow pulse pressure
Kussmaul’s sign (Increased JVP w/ inspiration)
Pulsus paradoxus (decreased BP w/ inspiration)
Electrical alternans
What are the 3 types of AFIB?
Paroxysmal <7 days
Persistant >7 days
Permanent
What increases the effect of warfarin?
fluconazole, amiodarone, septra, grapefruit juice, alcohol
What are the reversal agents for DOACs?
Dabigatran = Idarucizumab Xa = Andexxa
What are the causes of High Output HF
Hyperthyroid, Anemia, Beriberi (b1-thiamine def), Sepsis, Pregnancy, AV fistula
What is the goal BP reduction for HTN emergency?
Start at 180/120 w/ end organ dmg. Reduce by 25% max in 1 hour. Then to goal ~160/100 over next 23
What is the goal BP reduction for aortic dissection?
Reduce to systolic 100-120 now!
`RAE vs. LAE
RAE is tall in L2 and V1
LAE is wide/notched in L2 and biphasic in V1
What meds can increase statin myopathy
Fibrates, macrolides, amioderone, verapamil, grapefruit juice
What is a normal PR interval? What is a normal QRS complex?
PR = 0.12-0.2 seconds (3-5 boxes or 1 large box)
QRS = <0.12 or < 3 boxes
What things can cause prolonged QT interval?
Electrolytes = Hypo Ca, K, Mg Amioderone Antipsychotics ABX = FQ and Azithromycin TCA's
How soon should you incise an auricular hematoma?
Around 48-72 hours
What is the definition of chronic rhinosinusitis? What about recurrent rhinosinusitis?
12 weeks. 4+ episodes per year.
Hoarseness for how long should be referred to ENT?
4 weeks w/ no associated URI symptoms
What is the mnemonic for CN innervation of EOM?
LR6SO4 3
What is the normal IOP?
8-21
What is the IV ABX of choice for orbital cellulitis?
Vanc and Ceftriacone or pime
What is the pathognomonic finding for CRAO?
Cherry red macula and boxcar stuff
Differentiate dry vs. wet ARMD
dry = drusen wet = neovascularization
When do you conduct optho screening for DM patients?
1 = five years post-diagnosis then annaully
2 = annually
What is the normal pr interval
3-5 boxes = 12-20 seconds = 1200-2000 ms
What is the diagnostic criteria for DM2?
FBGL = 126+
Random = 200 w/ symptoms or other findings
OG challenge = 200
A1C = 6.5+
Which DM meds are associated with weight loss and ASCVD prevention?
Hypoglycemia?
UTI?
- GLP1 and SLGT2
- SU
- SGLT2
Which hormones are released by the posterior pituitary?
ADH and oxytocin
What is the lab of choice for acromegaly?
IGF-1 (an indirect measure of GH). Oral glucose is supposed to inhibit but GH stays high.
How can you differentiate central vs. nephrogenic diabetes insipidus?
Desmopressin (DDAVP) replacement test.
DDAVP will work to decrease central. Has no effect on nephro.
What medications can be given for hyperthyroidism in pregnancy?
PTU in the first trimester
Methimazole later.