Fast Cardio Questions Flashcards
the stretching of the left ventricle from the left atrium contracting enabling the left ventricle to contract stronger and force more blood out of the heart
-Preload
atrial fib does what to cardiac preload?
-there is no preload when the heart is in atrial fib
the pressure behind the aortic valve in the heart
- afterload
- it is the diastolic blood pressure
the strength of the left ventricular muscle
-contractility
a medication that increases cardiac contractility
-digoxin
medication that decreases cardiac contractility
-verapamil
term for when the blood leaves the left ventricle for the body
-systole
passive phase of diastole
- gravity pulling blood into the left ventricle
- S3 sound if dilated/CHF
active phase of diastole
- artium squeezes blood into the ventricle
- S4 if LVH
an atypical symptom of heart attack in the elderly
-syncope
atypical symptom of heart attack in diabetics
- silent heart attack, no chest pain
- they have SOB or even heart failure
atypical symptom of women with a heart attack
-abdominal pain
Acute Coronary Syndrome (ACS) includes what 3 possibilities?
- angina
- NSTEMI
- STEMI
% of blood ejected out of the ventricle and into the body
-ejection fraction
Normal Systole (normal ejection fraction)
55-60%
Non Modifiable cardiac risk factors
- age
- sex
- genetics
- ethnicity
Modifiable cardiac risk factors
- increased cholesterol
- HTN
- diabetes
- smoking
- obesity
- physical inactivity
- alcohol consumption
- stress
Guy comes to ER, what 3 things make you think he is having a heart attack?
- chest pain, with good story
- EKG changes consistent with ischemia, ST or flipped T
- elevated cardiac enzymes
AMI with STEMI
-Chest pain (CP) + ST elevations on EKG
AMI NSTEMI
-CP + cardiac enzymes (low), but neg EKG changes
Guy comes in with CP with negative cardiac enzymes and negative EKG has what?
-Angina
patient with predictable pattern of chest pain, walks a block relieved by rest, walks a block relieved with rest (exertion chest pain)…
-Stable angina
patient walks a block has chest pain takes 2 nitroglycerin tabs pains goes away, walks a block has chest pain takes 2 nitroglycerin tab pain goes away (exertion chest pain)…
-stable angina
guy has new chest pain due to partial occlusion of a coronary artery lasting less than 30 minutes with good cardiac story and risk factors (ACS acute coronary syndrome) …
-unstable angina
guy with hx of stable angina and his chest pain does not go away with three nitroglycerine tabs
-unstable angina
what is the work up for stable angina
-stress test (nuclear medicine exam)
test that looks for coronary artery blockages
-nuclear medicine exam, done by walking or medication to speed up the heart
If a nuclear medicine exam is positive what do you do with the patient?
-he needs a cardiac catherization
What is the tx for stable angina?
- ACE inhibitors
- b blockers
- asa
- nitroglycerine, sublingual
- statin
45 y.o. female presents with chest pain which wakes her at night, she has ST elevation during this pain. She can walk all day with no symptoms. Dx?
-Prinzmetal varient
CPK cardiac enzyme
-comes from general muscle
CKMB cardiac enzyme
- peaks first
- CKMB is the cardiac marker
Troponin cardiac enzyme
- most sensitive and specific cardiac enzyme
- can be detected for 3 days
Tx for guy with Non ST Elevation, Chest pain, and low positive troponins? (this guy has a NSTEMI)
- MONA B CASHPAD
- elective cardiac cath (planned)
Tx for a guy with CP, ST elevations, and increased troponin?
this guy has a STEMI
- MONA B CASHPAD
- urgent cardiac cath within 90 min door to balloon
M
O
N
A
- morphine, vasodilator and reduce anxiety
- O2, NC > NRB > CPAP > intubate
- Nitro, SL > Paste or IV drip
- aspirin, ALWAYS 325mg
B
Bblockers
Metaoprolol
-short acting and long acting versions
Which beta blocker do you use with an ejection fraction over 40%
-metaprolol
Which Bblocker do you give when the guy has an ejection fraction less than 40%
-give Carveditol
Which Bblocker do you give for rate control ?
-Esmolol
Which Bblocker do you give for HTN with ACS?
-labetalol
C A S H P A D
- CCB, (use Cardizem for fib rate control only)
- ACE inhibitor, prevents remodeling
- Statin, short term antiinflammatory/platelet
- Heparin, for STEMI or Lovenox NTEMI/Angina
- Plavix, load 300mg then 75mg daily
- Amiodarone for VT/VF or any arryhthmia
- Dopamine/Dobutamine/diuretics
inflammation of the pericardial sac surrounding the heart
-Pericarditis
patient has chest pain, increased by inspiration and recumbency, relieved by leaning forward. There are ST segment elevations in most leads. What’s he got?
-pericarditis
young female has chest pain, increased by inspiration and recumbency. What might she have?
-think SLE
three causes of pericarditis
- viral
- post AMI think Dressler’s syndrome
- SLE in young females
- radiation
- bacterial infections
- rheumatic fever
- injury
- neoplasms
What is the tx for pericarditis?
- NSAIDs, steroids
- watch for pericardial effusion
Drug that can cause pericarditis
-hydralazine
this large vessel problem involves only one layer the intima
-aortic dissection
who gets an aortic dissection
-males 2 x greater, 40-80 yrs old
risk factors for aortic dissection
- pregnancy
- cocaine abuse
- HTN (chronic, present 70-90% of cases)
- Marfan’s
- Ehlers-Danlos Syndrome
what anatomical area do most aortic dissections occur
-Type A (60-65%), ascending aorta
What is the 2nd most common area for aortic dissections occur?
-Type B (30-35%), descending aorta (after the origin of the subclavian artery)
What is the gold standard for Dx of aortic dissections?
-Aortic Angiography (most are seen in the ER and tx and get a CT and then the angiography is obtained)
Meds to lower blood pressure in aortic dissections?
- nicardipine
- Esmolol
- Labetalol
- Nitropursside–may cause cyanide toxicity leading to AMS and high anion gap acidosis
What is the tx for aortic dissections?
-lower the blood pressure
- for Type A–surgical management
- for Type B–medical management initially, surgery if needed
patient has tearing sensation, and pain radiating to the his back, the pain in not quite as bad as it was when it first started. whats he got?
-aortic dissection
This aneurysm peaks in incidence over 60 yrs of age and accounts for 75% of all aneurysms
-Aortic aneurysms
what part of the vessel is involved in aortic aneurysms
-all three layers
what anatomical area are most aortic aneurysm seen?
infra-renal
60 y.o. presents with back pain, pulsatile mass and hypotension, what’s he got?
-Aortic aneurysm, this is a classic presentation
Other symptoms of AAA include?
- 75 are asymptomatic
- others have abrupt onset sever pain unrelieved by change of position
Best study for suspected aortic aneurysm?
-Ultrasound, then CT angiogram for prep evaluation