Cardiology Flashcards
left anterior wall aneurysm (post MI) on EKG
QS waves with persistent ST elevation in leads V2–V4
Thoracentesis diagnosis of empyema
aspiration of grossly purulent material or one of the following:
- positive Gram stain or culture
- pleural glucose less than 60 mg/dL
- pH less than 7.2
- LDH greater than 1,000 IU/L
When to give thrombolytics in STEMI
If PCI >120 minutes for transfer from first medical contact (90 minutes if no transfer)
Posterior wall MI on EKG
- ST- depressions in V1, V2, and V3
- Can see tall, broad R waves in V2-V3 and a dominant R wave in V2 (R/S ratio > 1)
Most common cause of ventricular arrhythmias
Ischemic heart disease
What dysrhythmia can be triggered by PVCs
V-tach
Sick Sinus SYndrome
Tachy-brady
Due to disease of SA node
Worse with increased vagal tone
Usually require pacemaker
Arrhythmogenic right ventricular cardiomyopathy on EKG
Epsilon wave: a positive electrocardiographic deflection after the QRS segment in leads V1–V3
Fibrofatty infiltration of ventricles
Syncope or sudden cardiac arrest
Cause and treatment of arrhythmogenic right ventricular cardiomyopathy
Fibrofatty replacement of right ventricular muscle
Beta-blockers and implantable cardioverter-defibrillator device
Brugada cause and EKG findings
Sodium channelopathy that presents with syncope
RBBB with ST segment elevation followed by a downsloping inverted T wave in leads V1 and V2
ICD
Wolff-Parkinson-White on EKG
Short PR interval followed by a slurred QR segment (delta wave)
Accessory conduction pathway, bypasses AV node
Differentiate between the orthodromic and antidromic WPW
Orthodromic: regular narrow complex tachydysrhythmia
Antidromic: regular wide complex tachydysrhythmia
EKG changes in order in hyperkalemia
Starts at 5.5-6.5
Peaked T waves, p wave wide and flat, PR interval prolongation, p wave disappears
At 7-9
QRS prolongation, escape beats, AV block, eventual sine wave morphology
Treatment for chest pain after cocaine use
ASA, benzos, trops
EKG changes in hypercalcemia
Short QT interval
Will causes decreased reflexes
First step to evaluate a patient with LVAD
Auscultate precordium - whirr
Most anterior part of heart
Right ventricle
MAT vs wandering pacemaker
Both has 3+ atrial morphologies
Wandering PM: 60-100 bpm
MAT: 100-180 bpm
Blunt cardiac trauma clearance
Normal EKG and trops