Circulatory disorders
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Circulatory disorders. Aneurysm: ballooning of an artery, thinning and weakening. Circulatory disorders. Angina Pectoris Chest pain, caused by lack of oxygen to heart muscle Often a warning before a heart attack Treat with nitroglycerin to dilate coronary arteries – given sublingual.

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Circulatory disorders

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Circulatory disorders

Aneurysm: ballooning of

an artery, thinning and

weakening

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Angina Pectoris

  • Chest pain, caused by lack of oxygen to heart muscle

  • Often a warning before a heart attack

  • Treat with nitroglycerin to dilate coronary arteries – given sublingual

2.02 Understand the functions and disorders of the circulatory system


Arrhythmia

Any change from normal heart rate or rhythm

BRADYCARDIA

Slow heart rate (<60/minute)

TACHYCARDIA

Rapid heart rate (>100/minute)

Circulatory disorders

What is the

normal range

for pulse?

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Arteriosclerosis: arterial walls thicken, lose

elasticity

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Atherosclerosis: fatty

deposits form on

walls of arteries

What is the difference between

arteriosclerosis and atherosclerosis?

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Coronary artery disease: a narrowing of the arteries that supply oxygen and

nutrient- filled blood to the heart

2.02 Understand the functions and disorders of the circulatory system


Hypertension: HBP

High blood pressure

Silent Killer, usually no symptoms

Leads to strokes, heart attacks, kidney failure

Higher in African Americans and post-menopausal women

Risk factors = smoking , overweight, stress, high fat diets, family history

Treatment relaxation, low fat diet exercise weight loss, medication

Hypotension

Low blood pressure systolic <100


Circulatory disorders

Heart failure: occurs when the

ventricles are unable to contract

effectively and blood pools in the

heart

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Murmurs: indicates defect

in heart valves

  • Gurgling or hissing sound

What is the most

common instrument

used to detect murmurs?

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Myocardial infarction: MI/heart attack

  • Lack of blood supply to the myocardium causes damage.

  • Due to blockage of coronary artery or blood clot

  • Amount of damage depends on size of area deprived of oxygen

  • Immediate medical care is critical

  • Rx: bedrest, oxygen, medication

  • Morphine for pain, tpa to dissolve the clot

  • Anticoagulant therapy to prevent further clots

  • Angioplasty and by-pass surgery may be necessary

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

How can PVD

be prevented?

Peripheral vascular disease: caused by

blockage of the arteries, usually in the legs

S/S: pain or cramping in the legs or

buttocks while walking

Tx: Rx to decrease cholestrol, diet change,

improve circulation

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Pulmonary edema:

excessive fluid in tissues

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

  • Transient ischemic attack

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Varicose veins: swollen, distended veins

  • heredity or due to posture

  • prolonged periods of standing, physical exertion, age and pregnancy

    Prevention

  • Wear sunscreen

  • Elevate legs when resting

  • Wear elastic support stockings

  • Eating fiber diets

  • Exercise

  • Weight control

2.02 Understand the functions and disorders of the circulatory system


Circulatory disorders

Leading Causes of Death:

The Impact of Circulatory Disorders

2.02 Understand the functions and disorders of the circulatory system


The circulatory system plays a vital role in homeostasis

Absorption and transport of nutrients to cells, tissues, organs, and systems

Relevance of nutrients to the blood and circulatory system

Did you know???

Vitamin K-

prevents hemorrhage

Vitamin B12-

prevents anemia

Vitamin E-

prevents hemolysis

2.02 Understand the functions and disorders of the circulatory system


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