Ischemic or CHD Pt 1 Flashcards

(39 cards)

1
Q

An insufficient supply of oxygenated blood results in what?

A

Ischemia

Blockage of coronary artery(s) results in damage/injury

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2
Q

What is ischemia seen on an EKG as?

A

ST depression

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3
Q

Cell death or necrosis is a result of ______

A

MI (myocardial infarction)

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4
Q

MI is seen on an EKG as an ________

A

ST elevation

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5
Q

What is the leading cause of death in the US?

A

MI

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6
Q

What does a ST segment greater than 1mm indicative of?

A

That there is an acute evolving MI

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7
Q

Ischemia may involve an inverted what on EKG?

A

T wave

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8
Q

What is a visible Q on EKG indicative of?

A

A previous infarction

The Q wave remains abnormal due to scar formation

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9
Q

What are the non-modifiable risks?

A

Advancing Age
Gender- especially men and post menopausal women
Family History

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10
Q

What are the modifiable risk factors?

A
Diabetes
Smoking
HTN
High Cholesterol
Obesity
Sedentary Lifestyle
Stress
Over Consumption of Alcohol
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11
Q

What are causes of Ischemic Heart Disease?

A
Atherosclerosis
Thrombosis 
Coronary Spasm
Decreased Coronary Flow
Abnormal Coronary Artery Development
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12
Q

What is the inflammatory process?

A

Gradual build up of atherosclerotic material
damages arterial walls.
-WBCs respond- inflammatory response further damages walls allowing LDL molecules to infiltrate.
-Fatty (lipid) streak develops. May harden and narrow vessel or may rupture.
-Response to rupture is blood clot formation, may further obstruct artery OR plaque may embolize & block smaller arterial branch.
Ischemia or MI

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13
Q

What is angina pectoris?

A

Chest pain due to myocardial ischemia

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14
Q

Stable angina pectoris?

A

effort induced
short lasting
relieved by rest or NTG

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15
Q

Unstable Angina (USA) pectoris tends to?

A

Lasts longer
More often
Not always related to exertion
NTG temporarily relieves

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16
Q

Variant Angina is also known as

A

Prinzmetal’s Angina

17
Q

Variant Angina occurs?

A

At rest
Early in the Morning
Thought to be a coronary artery spasm

18
Q

What is Variant Angina often associated with on EKG?

A

ST segment elevation

19
Q

Besides angina, what are other symptoms associated with IHD?

A

Fatigue
Silent MI, an MI can be silent ( mild/non-existent symptoms)
Detection of a new murmur post MI
Sudden Death

20
Q

Detection of a new murmur post MI may be due to what?

A

MR due to pap muscle dysfx/rupture, VSD, LV dilation

21
Q

With sudden death up to what % is due to MI’s

22
Q

What percentage have no symptoms prior to MI?

23
Q

Men v Women

Symptoms for Men

A

Typical Chest pressure
pain radiating to neck, jaw, and left arm
nausea
sweating

24
Q

Men v Women

Symptoms for Women

A
Chest pain
Profound fatigue
Chest- area pressure, constant/intermittent
SOA
Fast, weak pulse
Dizziness, fainting
Nausea
Sweating
25
``` -Relevant Facts for Women- Kills more women annually than ______ More prevalent after _______ More likely than men to ______ More ______ than men's MI's ```
Breast CA+accidents+diabetes Menopause Die within one year of first MI Damaging
26
What are the Diagnostic tests for IHD/CAD
``` Cardiac Cath Echo Stress Echo Nuclear Stress Testing EKG Blood Tests: enzymes, or other markers ```
27
Which diagnostic test is the Gold Standard for IHD/CAD?
Cardiac Cath
28
Stress Echo
Evaluates functional response of heart by detecting WMA's
29
Nuclear Stress Test
Detects perfusion abnormalities
30
Relevant Blood Tests | What cardiac enzymes increase with MI?
``` Troponin Creatinine Kinase (CK) -CK-MB Creatinine phosphokinase (CPK) ```
31
What is bad cholesterol?
LDL
32
What is good cholesterol?
HDL
33
``` Relevant Blood Tests Clotting Factors (Blood Clotting Time) ```
Prothrombin time (pro time, PT time, PTT, INR)
34
Relevant Blood Tests | C-reactive protein (CRP)
An indicator/marker of inflammation in the body
35
Clot Busters (thrombolysis)
Within 3 hours of onset of symptoms - Streptokinase - Urokinase - tPA (tissue plasminogen activator)
36
Statins
Reduce cholesterol, triglycerides
37
Nitrates
Vasodilators, CP relief
38
Antiplatelets
Reduce clot formation
39
Beta Blockers and Calcium Channel Blockers
Reduce workload of the heart