week 6 Flashcards
(184 cards)
Cardiovascular problems - distal impacts
- growth and development
- learning
- cognitive function
Anatomy of the heart - pathway of blood through the heart
- superior vena cava, inferior vena cava (deoxygenated)
- right atrium
- tricuspid valve
- right ventricle
- pulmonary artery
- lungs
- pulmonary veins (oxygenated)
- left atrium
- mitral valve
- left ventricle
- out aortic valve
- to the body
blood flow in utero
- placenta helps facilitate blood flow
- umbilical vein - provides O2 blood into superior vena cava via ductus venosus
- O2 blood mixes with deoxygenated blood –> heart –> septum bipases non aerated blood into left atrium and left ventcicle
- umbilical arteries take deoxygenated blood from aorta
Blood moves through the body…
by pressure (blood moves away from pressure)
Fetal structures of cardiovascular (3)
- foramen ovale
- ductus arteriosus
- ductus venosus
Foramen ovale
small hole between R and L heart
allows oxygenated blood to the left side of the heart
Ductus arteriosus
connects pulmonary artery to aorta
shunts deoxygenated blood from RV to descending aorta bypassing nonaerated lungs
Ductus venosus
shunts oxygenated blood from umbilical to Inferior vena cava bypassing the liver
Causes of congenital heart disease
cardiac development begins on 18th day of life, completed by 45th = environmental influences during this time
- 90% are multifactorial causes (genetic and environmental)
Gestational and perinatal history - cardiac (2)
maternal infection
maternal medications
Gestational and perinatal history - cardiac - maternal infection (2)
- rubella in 1st trimester
- HIV in late pregnancy
Gestational and perinatal history - cardiac - maternal medications (2)
- amphetamines
- phenytoin/progesterone/warfarin/valpro acid
Cardiovascular assessment - respirations (3)
- rate depth effort
- dry unproductive cough presence
- mild/moderate/severe WOB
Cardiovascular assessment - pulse (2)
- rate rhythm quality
- compare pulse sites (upper/central/lower extremities)
Cardiovascular assessment - blood pressure (2)
- is it within normal range for age
- compare upper and lower extremities
Cardiovascular assessment - colour (4)
- pale/dusky/cyanosis (blue better than grey)
- compare colour in peripheral and central locations
- does crying help or worsen the colour
- pulse ox
Cardiovascular assessment - cap refill
press 3 seconds come back in 3 seconds
pulse assessment - babies
brachial pulse is easiest
dorsal foot
femeral
Cardiovascular assessment - heart auscultation (4)
- auscultate for heart sounds, quality, loud/soft, distinct/muffled
- any extra heart sounds
- normal is S1 (lub) S2 (dub)
- S3S4 abnormal
- murmurs abnormal (location radiation timing
quality)
Cardiovascular assessment - fluid status
- edema (periorbital, facial, peripheral)
- abdominal distension
- palpate liver for hepatomegaly (liver margin)
- monitor I/Os for fluid status
- cap refill (press 3 seconds comes back 3 seconds)
Cardiovascular assessment - activity and behaviour
exercise intolerance
Increased pulmonary blood flow - types of defects (3)
- patent ductus arteriosus
- arterial septal defect
- ventricle septal defect
Increased pulmonary blood flow - clinical manifestations (8)
- tachypnea
- tachycardia
- murmur
- congestive heart failure
- poor weight gain
- diaphoresis
- periorbital edema
- frequent respiratory infections
Decreased pulmonary blood flow - types of defects (4)
- pulmonary stenosis
- tetralogy of fallot
- pulmonary atresia
- tricuspid aterisia