Pulmonary Approach To Dyspnea, Palpitations, And Fatigue - Dr. Pence Flashcards
Vital signs showing respiratory distress
RR > 20/min
Tachypnea
O2 < 95%
What can be both restrictive and obstructive
Bacterial and viral pneumonia
Pulmonary HTN dx
Mean pulmonary artery pressure (mPAP) >20mmHg
Pulmonary HTN can cause what
Cor pulmonae (RIGTH HF)
= JVD
= bilateral lower leg edema
5 groups that can get pulmonary HTN
- Pulmonary Artery HTN : CT disease, congenital, unknown usually hereditary cause
- Left HF : valvular dysfunction, LV problem
- Pulmonary Disease : ILD, COPD, OSA
- Chronic VTE : chronic small PE
- Miscellaneous : Sickle cell, sarcoidosis, tumor compression
SX Pulmonary HTN
SOB Fatigue Pre-syncope sx CP (JVP, edema, exertion syncope)
How to DX Pulmonary HTN with ECG
- RV hypertrophy
- Right Axis deviation : + AVF, - I
- RBBB : R and R’ seen in V1
- RA enlargement : large peaked P waves on lead II
Pulmonary HTN labs and imaging
- BNP : legates when heart is expanding
- Transthoracic Echocardiogram (TTE) : you can see chamber sizes and pulm artery systolic P (from tricuspid regurgitation gradient)
- Cardiac Catheterization ** GOLD
GOLD for Pulmonary HTN imaging
Swan Ganz Catheter
Protein C and S doe what
BLOCK F8 and F5
Antithrombin III does what
BLOCK : F2 and F10
PE sx
SOB, CP, Palpitations, Unilateral leg edema, can have syncope
Tachycardia, hypoxia
Criteria for blood clot of PE
Wells Criteria
Low probability of DVT or PE order what
D-Dimer
Higher or medium probability of DVT or PE you do what
Imaging study
D- Dimer can be + when
Inflammation state
High Clotting
(If - then you know there is no DVT)
PE EKG
- Sinus tachy + Right Axis deviation + HIGH R in V1
- Inverted T wave V1-V4
- RBBB
- S1Q3T3
Imaging for PE
CT Chest + CONTRAST
V/Q scan ——> no radiation
PE Echocardiogram
- RV is dilated
2. LV barely opening up (can show D-shaped)
Unstable PE is presenting how
Hypotension, RV strain, high cardiac enzymes
TX Unstable PE
- Resuscitation: Ventilation, vasopressin,
- Anti-coags
- Thrombolysis can be repeated, emboli to my, surgery thrombectomy
TX Stable PE
- Heparin = FAST , needs monitoring (increase antithrombin 3)
- Low Molecular Weight Heparin = FAST
- VIT K antagonist (Warfarin, Coumadin) = only when INR is 2-3 (normal)
Newest best anti-coags
Direct Oral Anticoagulants (DOACs)
= Rivaroxaban, Apixaban, Endoxaban, Dabigatran)
= inhibits F10, or dabigatran inhibits F2
Reversal agents for LMWH, Warfarin, DOAC
- LMWH : Protamine Sulfate
- W : Vit K, Prothrombin concentrate, fresh frozen plasma
- DOAC : 10a inhibitors = Andexanet alpha, Dabigatran = idarucizumab
Duration of tx for PE
3 months (Malignancy or genetic mutation, hypercoagability disease = indefinitely)