Internal Med 11 Flashcards
(50 cards)
Tx of urethritis
- Almost always STD (Gon/Chla)
- Tx = CTX + Azithro or Doxy
- HIV screen
Tx of asymptomatic bacteruria
- Only treat if pregnant or with urinary procedure
* Tx in pregnancy = Amoxicillin
Tx of uncomplicated cystitis
o Empiric: TMP/SMX, Nitrofurantoin, Fosfomycin
o 3 days
Tx of complicated cystitis
o Empiric: TMP/SMX, Nitrofurantoin, Fosfomycin
o 7 days
Tx of pyelonephritis
o IV = CTX
o PO = Cipro
o 10 days
Tx of perinephric abscess
o I&D
o Abx same as pyelo but for longer
♣ CTX
o 14 days
What are the major criteria of Endocarditis
- Bacteremia
- New regurg murmur
- Vegetations on echo
What are the minor criteria of endocarditis
- Risk factors (IV drug use, h/o endocarditis, prosthetic valve)
- Fever >38
- Vascular complications (splinter hemorrhages, janeway lesions)
- Rheumatologic complications (Osler nodes, glomerulonephritis)
Tx of endocarditis
Abx for 4-6 weeks
♣ Native valve
• Vancomycin
♣ New prosthetic valve (<60 days)
• Vanc + Gent + Cefepime
♣ Old prosthetic valve (>365 days)
• Vanc + Gent + Ceftriaxone
When do you get surgery for endocarditis
- Pt has developed CHF
- Vegatation >15 mm
- Vegetation >10 mm with embolism
- Abscess (abx won’t work)
- Fungus
What does Hyperkalemia do to EKG
- Peaked T-waves
* Then everything gets stretched out (PR interval prolonged, widened QRS, torsades)
What does hypokalemia do to EKG
Prolonged QT, flattened T-waves, U-waves
What does hypocalcemia do to EKG
On EKG: prolonged QTc
What does hypercalcemia do to EKG
On EKG: shortened QTc
What is Zosyn
Pip/Tazo
What is Unasyn
Amp/Sul
What is Augmentin
Amox/Clav
Is the TSH likely to be high or low in thyroid cancer
High - thyroid cancers are usually NOT hyperfunctioning (no hyperthyroidism in cancer)
What will you see in papillary thyroid carcinoma
• Histology:
o Orphan Annie eye nuclei
o Nuclear grooves
o Psammoma bodies
What will you see in follicular thyroid carcinoma
• Histologically the same as follicular adenoma but invade the tumor capsule
o This finding is made on exam of a surgically excised nodule
Cannot differentiate based on histology
- Metastasis is usually hematogenous (vs. most which spread via lymph)
What will you see in medullary thyroid carcinoma
- From parafollicular “C cells”
- Will have increased calcitonin (hypocalcemia)
- Associated with MEN 2A and 2B
- Does not respond to radioactive iodine (C cells are not making iodine)
How might diabetes affect the GI tract
Diabetic autonomic neuropathy of the GI tract (e.g. delayed gastric emptying)
How do you treat diabetic gastroparesis
Metoclopramide (D2 receptor antagonist) has prokinetic and antiemetic effects
What will you see in the fluid of a loculated pleural fluid collection caused by pneumonia
- Glucose
- pH
- protien
Will be an exudative effusion
- Low glucose (<60) due to consumption by bacteria
- low pH (<7.2) due to anaerobic utilization of glucose by neutrophils and bacteria
- High protein due to increased microvascular permeability due to cellular destruction