Exam 3 Flashcards
Heart, Peripheral Vascular, Abdominal
Definition of pulmonary circulation
Right side pumps blood to lungs by removing C02 & replenishing supply
Definition of systemic circulation
Left side of the heart pumps blood to other parts of the body
How is deoxygenated blood traveled through the heart?
Blows flows into superior and inferior vena cava-> right atrium-> tricuspid valve-> R.ventricle-> pulmonary valve-> R. pulmonary artery->Lungs
How is oxygenated blood traveled through the heart?
Pulmonary veins-> L.atrium->mitral valve->L.ventricle->aortic valve->aortic arch->All parts of body
What valves prevents from flowing in reverse direction?
Pulmonic & aortic (semilunar valves)
Lays of the Heart & Function
Pericardium- Fibroserous sac that attache to great vessels & surround heart
Myocardium-Thickest layer, contracts muscle cells
Endocardium-Thin endothelial tissue & lines inner surface of heart
Electrical Pathways of the heart
- SA node (sinus node) generates impulses & contracts to send blood to ventricles
- Impulse conducted to atria to AV node
- AV node relays impulse to AV bundle (bundle of His)
- Electrical impulses travel to right and left bundle branch & purkinje fibers in myocardium to both ventricles
Definition of Diastole & Systole
Diastole-Relaxation of ventricles (filling)
Systole-Contraction of ventricles (emptying)
Why is systole split into two?
S1- Beginning of systole, closing of AV valves (tricuspid & mitral)
S2-Ventricular emptying, decreased pressure & closing of semilunar valves (aortic & pulmonic)
Normal Heart Sounds & Where are they heard the best
S1 (“lub”)-Best at apex
M1-mitral valve closure
T1-Tricupsid valve closure
S2 (“dub”)-Best at base
A2-aortic valves closure
P2-pulmonic valve closure
Extra Hearts Sounds
Diastolic filling sounds
S3-early in diastole, after S2
S4-Late in diastole, before S1
How to Calculate CO & Normal Output
SV*HR=CO
Normal: 5-6 L/min
What type of oxygen do carotid arteries supply and what to assess for?
Supply neck and head (brain) w/oxygenated blood
Assess for amplitude & contour
What type of oxygen do jugular venous pulse & why is it important?
Supply neck and head with unoxygenated blood via superior vena cava
Definition of Murmur
Blowing, swishing sounds over valve area or intercostal space
(Described as musical, harsh, or rumbling)
Biological (Genetic) Changes of Infants
Heart beat begins 3 weeks gestation
Oxygenation occurs via placenta
Formen ovale closes within first hour (Ductus arterioles closes within 10-15 hours)
Biological (Genetic) Changes of Pregnant Women
Increased blood volume 30-40%
Increased SV & CO (pulse 10-15 bpm higher)
Decreased arterial blood pressure
Decreased BP drops during 2nd trimester, then increases back to normal
Biological (Genetic) Changes of Older Adults
Systole BP (20 mm Hg) due to stiffening of large arteries
Increased LV wall thickness
Increased risk for arrhythmia & coronary artery disease
Ectopic beats (extra heart beats) are common
S/S of Chest Pain
Angina: Cardiac chest pain; severe w/sense of pressure radiates to left shoulder or jaw
Diaphoresis: Sweating
What does Tachycardia & Palpitations Indicate?
Tachycardia: Weak heart= Increased CO
Palpitations=Abnormal conduction or Increased CO
What cardiac diseases is dyspnea associated with?
MI, HF, or contrary artery disease
Definition of Orthopnea?
Sit upright to breathe due to fluid in the lungs
Indicates HF
Orthopnea
Nocturnal dyspnea
White-Pinked tinged sputum (fluid accumulation)
How does ARF & RHD develop?
Group A & B-hemolytic streptoccis
Mneumonic for Smoking
Ask, advise, Assess, Assist, Arrange
Normal & Abnormal Findings of Neck Vessels (Inspection)
Normal: jugular venous pulse not visible at 45 degrees or higher
Abnormal: Visible pulse (Increase venous pressure) indicated HF, pulmonary embolic, cardiac tamponade
Distention on one side-Kink or aneurysm
Positive Kussmaul Sign
Increased jugular venous pressure on inspiration indicates pericarditis
Normal & Abnormal Findings of Neck Vessels (Auscultation)
Use bell to auscultate carotid artery & patients holds their breath
Normal: No swishing, blowing, or other sounds
Abnormal: Bruit over artery indicates occlusive arterial disease
Definition of Bruit
Blowing/Swishing sound caused by blood passing through narrowed vessels
Normal & Abnormal Findings of Neck Vessels (Palpation)
Normal: Pulse 2+ bilaterally, contour smooth
Abnormal: 1+ (hypovolemia, shock, decreased CO)
+4 (hypervolemia, increased CO, thrills)
Normal & Abnormal Findings of Anterior Chest (Inspection)
Normal: Apical pulse may not be present (mitral area at MCL, fourth/fifth ICS)
Abnormal: Heaves/Lifts indicates enlarged ventricles
Definition of Heaves/Lifts
Abnormal outward pulsations
Normal & Abnormal Findings of Anterior Chest (Palpation)
Normal: Apical pulse in mitral area, 1-2cm, small amplitude
Abnormal: Unable to palpate (pulmonary emphysema); Large, displaced, long duration (Cardiac enlargement)
Normal & Abnormal Findings of Anterior Chest (Auscultation)
Diaphragm at apex
Normal: 60-100 bpm w/regular rhythm
Abnormal: Bradycardia/Tachycardia (Decreased CO)
How to auscultate pulse rate deficit
Palpate radial pulse & auscultate apical pulse (full minute)
Findings of Pulse Rate Deficit
Normal: Pulse identical
Abnormal: Indicates A.fib, A.flutter, blockage, or premature contractions
Abnormal & Normal Findings of Extra Sounds
Normal: No extra sounds
S3 heard at beginning of diastole pause in children, adolescents, and young adults
S4 heard at end of diastole in athletes & older adults 40-50
Abnormal: Ejection sounds or clicks indicate friction rub during systole
Normal & Abnormal Findings of Anterior Chest (Auscultation; Murmurs)
Normal: No murmurs
Abnormal: mid systolic, pansystolic, & diastolic murmurs
Definition of Murmurs
Swishing sound caused by turbulent blood flow through heart valves or great vessels
Definition of Arteries
Blood vessels that carry oxygenated, nutrient rich blood from the heart to capillaries
Majors Arteries of Arm & Components
Bronchial Artery
Radial Artery (thumb side)
Ulnar Artery (pinkie side)
Major Arteries of Leg & Components
Femoral Artery
Popliteal Artery: Artery front of thigh to back of thigh
Components of Popliteal artery
Anterior branch: Dorsalis pedis artery (Top of foot)
Posterior branch: Posterior tibial artery (behind medial malleolus of ankle)
Definition of Veins
Blood vessels that carry deoxygenated, nutrient-depleted blood from tissues to heart
Mechanisms of Venous Pressure
- One way valves to prevent blood from flowing backwards
- Skeletal muscles contract sending blood towards heart
- Inspiration increased abdominal pressure creating pressure gradient
Definition of Perfusion
Interstitial fluid releases water, oxygen & nutrients & picks up products (CO2)
Biological (Genetic) Changes of Pregnant Women
Occurs in 3rd Trimester
Edema-Bilateral pitting edema in lower extremities
Variocosities-Enlarged & twisted veins under skin
Hemmorrhoids-Elarged & irritated veins or blood vessels around anus/lower rectum
Biological (Genetic) Changes of Infants
Peripheral system same as adults
Developed at birth
Acrocyanosis & skin molting at birth
Biological (Genetic) Changes of Older Adults
Increase risk for atherosclerosis & arteriosclerosis
Dorsalis pedis & posterior tibial pulse become difficult to find
Trophic changes: thin, shiny skin; thick-ridged nails; loss of hair on lower legs
S/S of Arterial Insufficiency
Cold, pale (pallor), clammy skin, thin skin on extremities
S/S of Venous Insufficiency
Warm skin, edema, brown hyperpigmentation
Definition of Intermittent Claudification and Indicates
Weakness, cramping, aching or pain w/activity
Indicates arterial disease
S/S of Peripheral Venous Disease and Indicates
Heaviness of legs, aching aggravated by standing/sitting. leg edema
Associated with delayed wound healing
What does Erectile Dysfunction indicated in male patient?
Central arterial or venous disease