Cardio Flashcards
Valve btwn right atrium and right ventricle?
Tricuspid valve
Deoxygenated blood enters heart where?
Thru superior/inferior vena to right atrium
Valve between right ventricle and pulmonic arteries?
Pulmonic valve
Oxygenated blood enters heart where?
From lungs to pulmonic veins into left atrium
Valve btwn left atrium and left ventricle is…?
Mitral valve
Oxygenated blood leaves heart where?
From left ventricle thru aortic valve into aortic arch
In what order do you listen for heart sounds?
AP(E)TM (“apt m/ape to man”)
Aortic, Pulmonic, Erb’s, tricuspid, mitral
Describe the physical route of auscultating heart sounds.
Right left down down over
➡️⬅️⬇️⬇️?
Watch YouTube video of heart auscultation
URL here
Which cardiac issues are cyanotic?
TOF & TGA
TOF stands for …?
Tetralogy of Fallot
TGA stands for …?
Transportation of Greater Arteries
PDA stands for …?
Patent ductus arteriosus
COA stands for…?
Coarctation of aorta
VSD stands for…?
Ventricular septal defect
ASD stands for…?
Atrial Septal Defect
What is the main defect of ASD?
Hole btwn RA & LA.
What happens with ASD?
Hole btwn atria causes oxygenated blood in left atrium to flow back into right atrium, increasing the workload of the right side, leading to right ventricular hype trophy and eventual HF.
Would increased pulmonary blood flow be associated with cyanotic or acyanotic conditions?
Acyanotic
Trace blood from vena cava to aorta
VC ➡️ RA ➡️ TRICUSPID ➡️ RV ➡️ PULMONIC ➡️ PULM ART ➡️ LUNGS ➡️ PULM VEINS ➡️ LA ➡️ MITRAL ➡️ LV ➡️ AORTIC ➡️ AORTA
Which clinical symptom presents with a small ASD?
Loud murmur
Which is worse in septal defects: loud sounds or soft sounds?
Soft bc loud indicates higher pressure, smaller opening.
What is the #1 congenital cardiac defect?
VSD
Pathology of VSD?
Hole btwn ventricles causes leak of oxygenated blood back into right side➡️Right sided hypertrophy➡️Heart failure
What condition is nicknamed turtle heart?
Severe VSD (common ventricle)
Teaching priorities and referrals for VSD parents?
S/S infection, CHF, support group, formula assistance, know what milestones to watch for, how to reach EI
Feeding concerns for VSD?
Small frequent high calorie feedings, mix formula carefully
4 things to assess for with VSD?
Tachypnea, dyspnea, poor growth, low formula intake
COA pathology
Narrowing of the aorta, increasing pressure in left side of heart and leading to left sided CHF
Which defects cause increased pulmonary blood flow?
ASD, VSD, PDA
Clinical manifestations of mild or moderate COA?
High BP, bounding pulse in arms
Low BP in legs, absent femoral pulse
Cool legs
Dizziness, syncopy
Clinical manifestations of severe COA?
Acidosis and hypotension, requiring intubation and BP support
What happens with PDA?
Ductus arteriosis (btwn aorta and pulmonary arteries) never closes, increasing pressure in the left ventricle and causing right ventricular hypertrophy from blood backing up through pulmonary artery
TGA: wha happen?
Pulmonary arteries leave from left ventricle, aorta from right ventricle, no mixing of systemic and pulmonary circulation.
Is TGA improved or worsened by coexisting defects?
Improved bc holes allow blood to mix
List interventions for TGA immediately at birth (5)
Intubate Paralyze to conserve energy Prostaglandin to keep PDA open 100% oxygen Correct metabolic acidosis
Why are cyanotic defects associated with metabolic acidosis?
The body is cold and overproduces lactic acid
What are 4 priority interventions for a post op TGA patient?
Observing for leaking around sutures
Arrhythmias
Hemorrhage
Left ventricle dysfunction
Describe 4 components of TOF.
- Pulmonic stenosis
- Backup into right ventricle➡️hypertrophy
- Overriding aorta (moves to be closer to pulmonic artery
- VSD because valve prevents ventricular septum from closing
MONA is an acronym for how we treat tet spells. What do the letters stand for?
Morphine
Oxygen
Nitrate
Aspirin
4 things that cause tet spells?
Crying, cold, defection, feeding
Intervention for older unprepared patients with tet spells?
Squatting to of help push blood out to extremities
Why is morphine used for TOF?
As a vasodilator
Clinical manifestations of TOF? (7)
Clubbing of fingers and toes Polycythemia (elevated RBCs) Metabolic acidosis FTT activity intolerance Cyanosis O2 sat 50-70%
Discuss effects of prostaglandin and indomethacin
Prostaglandin keeps ductus arteriosis open
Indomethacin CIA prostaglandin inhibitor, closes ductus artiosis
Both have very serious side effects and require 1:1 nursing care
Top five nursing priorities for CHF patients?
Oxygen Nutrition Assisting to cope Preventing infection Pre-op & post op care
Is acute rheumatic fever congenital?
No; acquired.
Describe what happens with acute rheumatic fever.
Immune reaction to strep throat that presents weeks after pharyngitis. It is self-limiting but can cause permanent valve damage.
List and describe 5 major jones criteria for rheumatic fever.
Carditis - tachycardia, cardiomegaly
Poly arthritis - swollen hot red joints
Erythema marginatum - macular rash
Chorea / St Vitus Dance - sudden movements
Subcutaneous Nodules - over bony prominences
Three main things nurses can do to prevent rheumatic fever.
Perform complete throat cultures, not just quick tests
Full course antibiotics teaching
Always check siblings
Five treatments for rheumatic fever?
Bed rest NSAID/ibuprofen for joint pain Steroids for carditis Penicillin/erythromycin Penicillin prophylaxis (Bicillin) monthly for 10 yrs to lessen damage to valves
Which valves are most damaged by rheumatic fever?
Left sided: mitral and aortic
List and describe 6 dx criteria for Kawasakis disease
- Changes in palms and soles; erythema and peeling
- Bilateral conjunctivitis w/o exudate
- Reddening of oral membrane / strawberry tongue
- Polymorphous rash
- Cervical lymphadenopathy
- High fever for more than 5 days (unresponsive to antipyretic)
3 phases of Kawasaki
Acute: fever, irritability
Subacute: resolution of fever, ends when all clinical symptoms disappear
Convalescent: symptoms gone but lab values still off
Duration of Kawasaki?
6-8 weeks
What is the only thing you give aspirin to a child for?
Kawasaki during acute phase
Nonpharmacologic treatments for CHF in babies?
Warm environment Low stress/stimuli Skin care Let sleep Give oxygen High cal, low volume feedings Parent teaching
S/s of CHF in babies?
Tachycardia at rest
Diaphoresis during feeds
Anorexia
Poor perfusion to extremities
Pharmacological treatment for babies with CHF?
Digoxin Lasix Ace inhibitors Synegis K+ supplements
How many doses is a Dig loading dose made up of?
3
How often give Dig?
At least 8 hours apart
More dangerous to give Dig before or after slated time?
Before bco risk of overdose
How is loading dose of dig split?
1st dose: 2x
2nd: x
3rd: x
Signs of dig toxicity?
Nausea and vomiting
What do we monitor for dig patients?
Heart rate, blood pressure, potassium