cards Flashcards
S1 is associated with which heart valves?
S1 - Mitral and Tricuspid (AV) CLOSE
S2 is associated with which heart valves?
S2 - Aortic and Pulmonic (SL) CLOSE
Define systole.
The period between S1 and S2
1: MV) —–squeeze—– (2: AP
Define diastole.
Period between S2 and S1
2: AP) —– rest —– (1: MV
Which heart sound is associated with CHF?
S3 - atrial gallop - kentucky (bourbon sloshy)
passive blood flow hits dilated, non-compliant walls
- think: hypervolemia - CHF, pregnancy, etc
Which heart sound is associated with LVH?
S4 - ventricular gallop - tennessee (tenneseeze-squeeze - kick/thick)
atrial KICK kicks blood + it bounces off extra THICK wall like a soccer ball
- think: stiff ventricular wall - LVH, htn, MI
- LA squeezes harder to overcome thick LV
Describe a grade IV/VI heart murmur.
loud + thrill
IV has what III does not (III is just loud)
Patient presents with history of multiple syncopal episodes. Physical exam remarkable for loud diamond shaped systolic murmur at 2nd R ICS that radiates to neck. What do you suspect and what are your actions?
Aortic Stenosis - syncope r/t decreased cardiac output
Consult cardiology
Which murmur is associated with S3 systolic murmur at 5th ICS MCL that radiates to L axilla?
Mitral Regurgitation
what is heart failure?
syndrome where CO is insufficient to meet body’s metabolic needs
what is diastolic heart failure?
HFpEF: inability to relax and FILL = ↓ CO
WWJD: “the heart doesn’t FILL well!”
what is systolic heart failure?
HFrEF: inability to contract = ↓ CO
what is acute heart failure?
LEFT-sided failure r/t acute MI, valve rupture
also LVH, htn
what is chronic heart failure?
RIGHT-sided failure d/t inadequate compensatory mechanisms to improve ↓ CO
acute heart failure: s/s x5
LEFT heart failure; L = LUNGS
- dyspnea @ rest
- crackles/rales: all lung fields
- wheezy, frothy cough
- S3 gallop (hypervolemia!)
- mitral regurg: systolic @ apex
What heart murmur is associated with acute heart failure? What heart sound?
murmur: mitral regurg (systolic @ apex)
sound: S3 gallop (hypervolemia!)
acute heart failure is LEFT-sided heart failure!
chronic heart failure: s/s x9
RIGHT heart failure. chRonic = RIGHT
- JVD, dependent edema, abd fullness
- hepatomegaly, splenomegaly
- fatigue on exertion
- paroxysmal nocturnal dyspnea (PND)
- displaced PMI
- S3 and/or S4
Which NYHA stage of heart failure could be described as “ordinary activity causes symptoms but comfortable at rest”?
Class III
What signifies a NYHA Class IV Heart Failure score?
inability to carry out ANY physical activity without discomfort
- s/s @ REST
heart failure: diagnostics x7
ABG: hypoxemia, hypocapnia
BMP: normal unless chronic failure
UA
CXR: pulm edema, Kerley B lines, effusions
Echo
EKG: deviation or underlying problem (acute MI, dysrhythmia)
PFT: for wheeze during exercise
heart failure: non-pharma mgmt x3
Na restriction
rest/activity balance
weight reduction
heart failure: pharm interventions x3
ACE inhibitors **
diuretics: furosemide (Lasix), thiazide
anticoagulation: for a fib
what is flash pulmonary edema?
aka acute pulmonary edema!
- fluid moves into lung interstitium (space w/in alveolar septum btw alveolus + capillary)
- d/t pulmonary capillary hydrostatic pressure
- fluid flow out of capillaries exceeds lymph system ability to remove it
- most common cause: LEFT-sided (acute) heart failure; also: acute MI, ↑ LV pressure
pulmonary edema: mgmt x7
- O2 1 - 2 L/min + ABG
- semi-Fowlers
- morphine 2-4 mg IVP q20 - 30 mins PRN (stop if hypercapnic)
- furosemide (Lasix) 40 mg IVP (repeat in 10 min if no response)
- if severe: nitroprusside or hydralazine (reduce preload & afterload)
- if CO/CI stays low: dobutamine 2.5 - 20 ug/kg/min (if SBP under 100 mmHg - dopamine 5 - 20 ug/kg/min)
- if severe bronchospasm: albuterol (Proventil)
What are 2 meds used to reduce preload + afterload in the setting of pulmonary edema?
nitroprusside or hydralazine
What 2 meds are indicated for persistently low CO in the setting of pulmonary edema?
dobutamine 2.5-20 ug/kg/min
dopamine 5 - 20 ug/kg/min (SBP lt 100)
55 yo M w PMH significant for left-sided heart failure develops flash pulmonary edema. He has persistently low CO and is hypotensive at 88/46. What pharm intervention is indicated?
dopamine 5 - 20 ug/kg/min
dopamine ↑ SVR + SBP (∴ BP)
what is hypertension?
sustained SBP 140+
OR
DBP 90+
What is secondary hypertension? What is its most common cause?
1 = renal artery stenosis
hypertension secondary to other known causes
others: renal disease, pregnancy, estrogen use, endocrine disorders
What kind of headache occurs in severe hypertension?
sub-occipital (back of head) pulsating HA in early AM, resolves throughout the day
Your patient has hypertension. Name 3 labs you would order and your rationale (what causes are you ruling out?)
- AM/PM cortisol levels: r/o Cushings
- CXR: if cardiomegaly suspected
- renovascular disease studies
JNC8 goal BP for patients under 60?
less than SBP 140
less than DBP 90
JNC8 goal BP for patients 60+?
less than SBP 150
less than DBP 90
What are the JNC 8 treatment recommendations for a non-black hypertension patient?
thiazide diuretic, CCB, ACE-inhibitor, ARB
What are the JNC 8 treatment recommendations for a black hypertension patient?
thiazide diuretic
CCB
What are the JNC 8 treatment recommendations for hypertension in adults 18+ with CKD?
ACE inhibitor OR ARB
REGARDLESS OF RACE/MEDICAL CONDITION
What are the JNC 8 treatment goals for hypertension? x5
initial treatment goal: 1 month; if not reached
- first: increase dose
- second: add second drug
- refer to hypertensive specialist if 3+ drugs needed
assess monthly until goal reached
do not use ACE-i + ARB together
Per JNC 8 guidelines, how often do you assess BP until hypertension goal is reached?
MONTHLY
1 therapeutic lifestyle change necessary in HTN management?
Restrict sodium intake
67 yo. F presents to the clinic with no significant PMH. Initial BP read 168/92 with no other significant findings on physical exam. Before leaving - second BP read 158/88. You should?
Teach the patient about lifestyle changes - diet/exercise
What is a hypertensive urgency?
BP greater than 180/110 WITHOUT target end organ damage
hypertensive urgency: mgmt options x4
PO! clonidine (Catapres) captopril (Capoten) nifedipine (Procardia) furosemide (Lasix)
what is a hypertensive emergency?
BP greater than 180/120 WITH end target organ damage
requires IMMEDIATE intervention - in less than 1 hour
What are examples of end target organ damage associated with hypertensive emergency? x8
malignant hypertension hypertensive encephalopathy intracranial hemorrhage acute MI unstable angina acute LV failure with pulmonary edema dissecting AA eclampsia
hypertensive emergency: mgmt x5
IMMEDIATE - less than 1 hour + ICU admit (art line + IV meds)
lower BP to SBP 160 - 180 OR under 105 DBP
- lower BP no more than 25% within 1 - 2 hrs then gradually over several days w PO tx
options:
- nicardipine (Cardene) ** gold standard
- nitroprusside (Nipride)
What are the parameters for lowering BP during a hypertensive emergency?
goal BP: SBP 160-180 / DBP under 105
do NOT lower more than 25% within 1 - 2 hrs
then lower gradually over several days with PO
What is the gold standard pharm intervention for hypertensive emergency?
IV nicardipine (Cardene)
angina: expected EKG findings
ST depression ** (most common)
T-wave peak or inversion
(DURING ATTACK)
What is angina? What is its pathophysiology?
characteristic chest discomfort lasting several minutes
↓ blood flow through vessel → TISSUE ISCHEMIA
What is stable angina?
- aka classic aka chronic
- predictable: pattern, onset, duration
(4E: eating, exercise, exposure to cold, emotions) - exertional: most common
- relieved by rest + nitroglycerin
What is Prinzmetal’s angina?
- aka variant
- intermittent, including at rest
- patho: VASOSPASM d/t ↑ intracellular Ca, NOT r/t CAD
What is Levine’s Sign?
clenched first over precordium
90% diagnostic for angina
lipid panel goals: DM or CAD pts
LDL less than 70
HDL 40+
trigs less than 150
ideal total cholesterol
less than 200 mg/dL
What is the definitive diagnostic procedure for angina?
coronary angiography - but not indicated solely for diagnosis
Your obese 38 yo. patient has the following lipid panel:
Total Cholesterol 270
HDL 28
LDL 168
What is the most appropriate intervention at this time?
Start a statin
Which of the following lipid panels has 3 of the 4 values abnormal, warranting attention from the AG-ACNP?
a. cholesterol 170 LDL 80 TG 240 HDL 20
b. cholesterol 180 LDL 136 TG 160 HDL 29
c. cholesterol 210 LDL 182 TG 160 HDL 34
B. Cholesterol 180 LDL 136 TG 160 HDL 29
normal triglycerides
less than 150 mg/dL
optimal LDL
less than 100 mg/dL
ideal HDL
40 to 60
low = under 40
high = 60+
angina: non-pharm mgmt
- reduction of risk factors
- manage diet
↓ saturated fats
then, ↓ unsaturated
then, consider ↓ plant sterols (nuts, veg oils, etc)
angina: pharm mgmt
ASA 81 mg QD (enteric coated)
nitrates
beta blockers
calcium channel blockers
What is the leading cause of death in adults in the United States?
myocardial infarction
acute myocardial infarction: pathophys
↓ perfusion to myocardial tissue → infarction
- result: irreversible myocardial necrosis
When do most AMI occur?
@ rest
What three groups present with non-classic acute MI symptoms and how do they present?
women: fatigue; epigastric pain
elderly + diabetic: no pain
- in DM r/t neuropathy
acute MI: classic s/s x7
substernal chest pain: radiates to L arm + jaw
dyspnea
n/v
impending doom, syncope
Which heart sound is common in acute MI?
S4 r/t ventricular wall stiffness
acute MI: EKG findings
~ 30% have no initial changes
ST elevation gt 1 mm from baseline
peaked T waves
significant Q wave (gt25% height of R wave)
What two cardiac enzymes are cardioselective?
Troponin I
CK-MB
After acute MI, when do cardiac enzymes elevate and how long do they remain elevated?
elevate above normal w/n 4 - 6 hrs
remain elevated for days - 3 wks
ST change: I + aVL - indicative of what kind of MI?
LATERAL
ST changes: Leads II, III, + aVF - indicative of what kind of MI?
INFERIOR
ST changes: V leads/V3-V4 - indicative of what kind of MI?
ANTERIOR
anterior MI: EKG findings
ST elevation in V leads/V3-V4
acute MI: mgmt
MONA
- O2
- Morphine 2-4 mg IVP q30 min PRN
- NTG SL q 5min x3
- ASA 325 mg chewed
- IVF @ KVO: large-bore PIV x3
- 12 lead + cardiac monitor
- if pulm edema: furosemide 40 mg IVP
- metoprolol 5mg IV q2 min x 3 /THEN/ 15 min after last IV dose, 50mg PO q6 hrs
- heparin vs Lovenox 1 mg/kg q12hrs + monitor coag
- ACE Inhibitor: to prevent remodeling if HF or lg infarction
- otherwise, only after fibrinolytics, ASA
acute MI: beta blocker of choice + dosage
metoprolol 5 mg IV q2min x 3
- then, 15 minutes after last IV dose: 50 mg PO q6hrs
What is the reversal agent for coumadin?
Vitamin K
indications for pharmacological revascularization in the setting of an AMI?
unrelieved chest pain 30 min - 6 hrs
/with/
ST elevation over 1mm in 2+ CONTIGUOUS leads
pharm revasc: fibrinolytics - tPA
acute STEMI: door to needle time? door to cath time?
door to needle - 30 minutes
door to cath - 90 minutes
Absolute contraindication for tPA.
Active bleeding or risk thereof including abn coags
acute MI: Lovenox doseage
SQ 1 mg/kg q12hrs
What is venous thrombosis?
partial or complete occlusion of vein by a thrombus with secondary inflammation to vessel wall
- superficial OR deep
venous thrombus: causes x5
immobility hypercoagulable state endothelial damage recent surgery PO contraceptives: esp if smoker
superficial thrombosis: s/s + exam findings x3
sudden onset pain
localized heat/erythema
low grade temp
DVT: s/s + exam findings x4
sudden onset pain, esp while walking
- may be dull ache or “tight” feeling
edema distal to occlusion
skin cool to touch
low grade temp