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Heart Tones and Assessment. By: Diana Blum MSN Metropolitan Community College. OBJECTIVE 1 . EVENTS THAT CREATE NORMAL SOUND. Cardiac Cycle. Contraction and relaxation of the heart: lub dub or 1 heart beat Diastole: ventricles at rest and filling up with blood coming from the atria (Dub)

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Heart tones and assessment

Heart Tones and Assessment

By: Diana Blum MSN

Metropolitan Community College


Objective 1
OBJECTIVE 1

  • EVENTS THAT CREATE NORMAL SOUND


Cardiac cycle
Cardiac Cycle

  • Contraction and relaxation of the heart: lub dub or 1 heart beat

  • Diastole: ventricles at rest and filling up with blood coming from the atria (Dub)

  • Systole: Once the Ventricle is filled with blood and the electrical impulse has reached the terminal fibers of the conduction system, the Ventricle contract and eject blood into the pulmonary artery from the RV and into the aorta from the LV (Lub)


Autonomic nervous system
Autonomic Nervous System

  • Built in control center of the body

  • Regulates functions not under conscious control

  • Blood vessels innervated by sympathetic system

    • Fight or flight

      • Nerve endings are adrenergic and nuerotransmitter is norepinephrine

        • Increases HR and BP

  • Parasympathetic is responsible for rest and digest

    • Cholinergics are the nerve endings and acetylcholine is the neurotransmitter

      • Decreases HR and BP

  • Parasympathetic and sympathetic innervates heart


Video
Video

  • http://www.blinkx.com/video/heart-system/ALAjmSD19aWwdVJNyeOLjA


Objective 2
OBJECTIVE 2

  • ABNORMAL HEART TONES


Heart tones
Heart Tones

  • Murmur: Produced by turbulent sounds across valves

  • Gallop: extra heart beat

  • Click: sounds like a clicking sound from a valve that is metal

  • Rub: inflamed pericardium-best heart along left sternal border

  • S3 murmur: sounds like “Kentucky”

  • S4 murmur: sounds like “Mississippi”

    http://www.blaufuss.org/

    http://www.med.ucla.edu/wilkes/Rubintro.htm


  • Innocent Heart Murmurs

  • Normal heart murmurs

  • Benign heart murmurs

  • Functional heart murmurs

  • Physiologic heart murmurs

  • Still’s murmurs

  • Flow murmurs



Evaluation of murmurs
Evaluation of murmurs

  • When evaluating a heart murmur, your doctor pays attention to many things, such as:

    • How faint or loud the sound is. Your doctor will grade the murmur on a scale of 1 to 6 (1 is very faint and 6 is very loud).

    • When the sound occurs in the cycle of the heartbeat.

    • Exactly where the sound is heard in the chest and whether it also can be heard in the neck or back.

    • Whether the sound has a high, medium, or low pitch.

    • How long the sound lasts.

    • How breathing, physical activity, or change of body position affects the sound.


Objective 3
OBJECTIVE 3

  • SYSTOLIC VS DIASTOLIC MURMURS


Systolic murmur
systolic murmur

  • is heard when the heart is squeezing and pumping blood out of the heart.


Diastolic murmur
diastolic murmur

  • is heard when the heart is relaxing and filling with blood.

  • often are a sign of a heart defect or heart disease, and further checking is likely needed.


Continous murmur
Continous Murmur

  • is heard during the entire heartbeat. These murmurs often are a sign of a heart defect or heart disease, and further checking is likely needed.


Inspection and palpation
Inspection and palpation

http://www.youtube.com/watch?v=WbBIHRPlyj8&feature=related

USE MY NURSING LAB also


Objective 4
OBJECTIVE 4

  • DEMONSTRATION


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