Internal Medicine Shelf Flashcards
(338 cards)
When are nitrates contraindicated (3)?
RV Infarction (preload dependent)
Aortic Stenosis
PDE-i use
PFTs in Obstructive + Restrictive Disease
Obstructive
Low FEV1/High FVC (trapped air) <70%
Restrictive
Low FEV1/Low FVC >70%
2 Tests to Differentiate Asthma vs. COPD?
Bronchodilator Test (Asthma =improves) DLCO (low in COPD)
Acid Base Values for ASA Toxicity:
- pH, PaCO2, HCO3
- PaCO2 actual vs. expected?
- Mechanism of Metabolic Acidosis (3)
- pH nl, PaCO2 low (stimulates resp) and HCO3 low
- PaCO2 actual < expected (via Winters) b/c ASA will itself lower PaCO2 in addition to the metabolic requirement for compensation
- 3 Mechanisms: Inhibits renal function (retain acid), uncouples OxPhos (fever) and inhibits enzymes in CHO/lipid metabolism
SBP
- Presentation
- Next step/diagnosis?
- Presentation: cirrhotic with AMS + fever
- Next step: diagnostic para looking for:
1. +Fluid Cx
2. >250 cells
First step in any ACS is…
Give ASA (inhibits TXA2 = low risk for Adverse Event). EKG is first best test for any chest pain btw
Heart Block
- Type 1
- Type 2
- Type 3
- All cause _____
- The MCC of ____ is Type 3
Type 1: >0.2 s of PR interval
Type 2:
- Mobitz 1: increase PR with dropped beat, low risk of bradycardia
- Mobitz: no PR change with dropped beat, high risk of bradycardia
Type 3:
- Complete loss of atria–ventricular conductivity, MCC bradycardia
All cause bradycardia
MCC = Type 3 Heart Block
HIV Rx ADE: give class and name
- NRTIs in general
- NNRTIs in general
- Indinavir
- Didanosine
- Abacavir
- Nevirapine
- Efavirenz
- Zidovudine
NRTI = lactic acidosis NNRTI = SJS Indinavir = protease inhibitor = crystalline nephropathy Didanosine = pancreatitis (NRTI) Abacavir = hypersensitvity (NRTI) Nevirapine = NNRTI = liver failure - Efavirenz: sleepy confused - Zidovudine: leukopenia
PEA
- Causes (5+5)
- Management
- Never used…
Causes
- 5 Hs: Hypovolemia, Hypothermia, HypoK/HyperK, H+ (Acidosis), Hypoxia
- 5 Ts: thromboembolism, trauma, tamponade, tension pneumo, toxin
Management: CPR + Epi (no role for DC/defib)
Horny plates on extensor surfaces of limbs in a 20 y/o female who had normal skin at birth?
Ichthyosis
Acetaminophen Ingestion Protocol
- Activated charcoal in 1st 4 hours
- First plot on Rumack-Matthew nomogram in 1st 4 hours
- After 1st plot +/- NAC
Mediastinal Masses
Teratoma, Thyroid, Thymoma and Terrible Lymphoma
Teratoma Includes what 5 Tumors
Germ Cell Tumors
- Seminoma (high hCG, nl AFP, all other have high AFP)
- Yolk Sac
- Embryonal
- Mixed Germ Cell Tumor
- Choriocarcinoma
PPD Indurations
> 5mm + HIV/IC, Recent Contact with TB+, +CXR for TB
10mm + Immigrant, Jail Worker, <4 y/o, CKD/DM
15mm + Everyone else
What happens in an HIV+ patient has a PPD of 6 mm and a negative CXR?
9 months of INH + Pyridxoine
- Remember INH also can cause liver toxicity, watch LFTs!
MC Type of Stone and it’s shape?
CaOx = envelope
Cystine (“Sixstine”) = hexagonal (6 sides)
Giardia
Entomoeba
Cryptosporidium
Giardia: trophozite in bad water adheres to bad wall and causes malabsorption foul/floating/fatty diarrhea
Entomoeba: flask shaped ulcers, liver anchovie paste, bloody diarrhea
Cryptosporidium: watery diarrhea in IC patients with AFP stools
Ascending Cholangitis
- Triad/Pentad
- First line treatment
- If first line fails
- Charcot Triad: fever, RUQ pain, Jaundice
- Reynold’s Pentad: hypotension + AMS
- First Line: Fluids + Broad Spectrum IV Abx
- If fails, ERCP for biliary tree decompression
Per ATP guidelines:
- CHD Equivalents
- Risk Factors
- Equivalents ABCD
AAA, Bad Peripheral Arteries, Carotid Artery DZ, DM - Risk Factors ABCDE
Age (45/55), BP >140/90, Cigarettes, hDl, familE h/x
Disease where emergency plasma exchange is Tx?
Disease where emergency transfusion is Tx?
Goodpastures
Sickle Cell Disease
MCC Outpatient HyperCa
MCC Inpatient HyperCa
HyperPTH = out Malignancy = in
Patient with high Ca, low phosphate and low PTH with back pain
- Diagnosis
- Initial Treatment
- Long term of sarcoid mediated hyperCa
- Long term treatment of primary hyperparathyroidism
Dx: HyperCa of Malgiancny (PTHrP)
Initial Tx: Saline (if hypovolemic) +/- calcitonin
Long term treatment of sarcoid mediated: steroids
Long term of primary hyperPTH = bisphosphonate
4 Lab Findings representing metabolic complications of hypothyroidism
- High lipids/cholesterol
- HypoNa
- Elevated CPK
- Elevated LFTs
Solitary Pulmonary Nodule Definition and W/u
Definition: <3cm nodule surrounded by normal lung
-Low Risk (<40y/o nonsmoker): ask for old imaging. If no change in last 12 months –> serial CXR q3x12mo
-High Risk (>40y/o smoker): immediate CT +/- biopsy