Cardiac Flashcards
upper chambers of heart
atria
low pressure receiving chambers
lower chambers of the heart
ventricles
high pressure pumping chambers
The ___ receives deoxygenated blood from the body
right atrium
The ___ pumps deoxygenated blood through the pulmonary artery to the lungs to become oxygenated
right ventricle
The ___ receives oxygenated blood from the lungs
left atrium
The ___ pumps oxygenated blood from the lungs out the aorta and into the body
left ventricle
Functional closure of the PDA occurs at
48-72 hours after birth
Complete closure of the PDA occurs at
2-3 weeks
Heart forms in the fetus by the ___ week after conception
third
By day ___ of conception the heart begins to beat
23
Heart formation in the fetus is complete by the ___ week after conception
8th
AV valves, location
tricuspid valve (on the right) mitral valve (on the left)
Semilunar valves, location
pulmonic valve (at the base of the pulmonary artery between the right ventricle and the pulmonary artery)
aortic valve (base of the aorta between the aorta and the left ventricle)
Infants with CHD may have tachypnea and tachycardia but typically do not present in ____ unless there is a significant increase in pulmonary blood flow or poor systemic output with acidosis
respiratory distress
___ are usually normal with CHD except for color if cyanotic
Apgar scores
Symptoms of ___ usually occur with feeding because of increased oxygen consumption and need for greater cardiac output
feeding
Blood pressure in infants should be taken where?
In all four extremities
At minimum in the right arm and in one leg to detect COA
In children, simultaneous palpation of which 2 pulses is important in assessing whether a coarctation is present?
Radial and femoral
What might pallor in an infant indicate?
Anemia
CHF
Shock
Children with cyanotic heart disease will appear blue/ruddy particularly around what area?
Perioral area
b/c of right-to-left shunting of blood at arterial level
___ occurs when arterial desaturation has been present for at least 6 months of longer
Clubbing
A pulse that’s absent or weaker in the lower extremities compared to the upper extremities is diagnostic of what condition?
COA
Normal liver size
1 to 2cm below the right costal margin
In conditions of abnormal cardiac position, where is the liver edge?
Midline or on the left side of the abdomen
Where is PMI normally palpated? What about in infants and newborns?
apex in the left mid-clavicular line
left lower sternal border (infants/newborns)
S1 is created by the closure of what two valves? Where is it best heard?
closure of tricuspid and mitral
best at LLSB or apex
S2 is created by the closure of what two valves? Where is it best heard?
aortic and pulmonic
left upper sternal border
The origin of a murmur is usually found at what point?
Where it’s heard the loudest
___ due to cardiac cause is rare, occurring in less than 4% of cases
Chest pain
Where is PMI in infants?
4th intercostal space
Where is PMI in children over 7?
5th intercostal space
large, laterally displaced PMI would indicate
cardiomegaly
Thrills are best assessed with what part of the hand?
supine (not fingertips)
Carotid thrill indicates what condition?
aortic stenosis
Surpasternal notch thrill could be an indication for what 3 conditions?
Aortic stenosis, PDA, coarctation
RUSB (right upper sternal border) thrill indicates what condition?
Aortic stenosis
LUSB thrill indicates what condition?
Pulmonary stenosis
LLSB thrill indicates what condition?
VSD
Apex thrill indicates what condition?
Mitral regurgitation
Size of liver with cardiac stuff indicates what?
Fluid status - the more congested/fluid-filled, the lower down the liver will be
5 main red flags with HPI on cardiac patients
- FTT: feeding issues, poor weight gain
- Dyspnea/exercise intolerance
- Frequent respiratory infections
- Excessive weight gain (fluid?)
- Older children: HTN/new onset murmur
Stethoscope diaphragm is to listen for high-frequency sounds such as (6):
S1 S2 clicks MR and AR murmurs small VSDs rubs
Stethoscope bell is to listen for low-frequency sounds such as (4):
S3
S4
MS murmur
defects with increased flow across AV valves
Clicks are usually what?
mechanical valve closing
What does a rub sound like? What does it mean?
Sandpaper
(or what a chest tube sounds like)
Inflammation around the heart’s lining
How do you treat a rub?
Round-the-clock Motrin for 5-7 days
Aortic area of auscultation
2nd ICS, right sternal border
Pulmonic area of auscultation
2nd ICS, left sternal border
If aortic and pulmonic valves do not close at the same time it’s called a ____
split
Tricuspid area of auscultation
5th ICS, left sternal border
Mitral area of auscultation
5th ICS, left mid-clavicular line
PDA is normally considered a non-cyanotic condition, but when can it be cyanotic as well?
PDA can be cyanotic as well if pulmonary hypertension develops when the high pressure aortic pumps blood into the pulmonary trunk
Cyanotic or Noncyanotic: VSD
Noncyanotic
Cyanotic or Noncyanotic: ASD
Noncyanotic
Cyanotic or Noncyanotic: PDA
Noncyanotic (can also be cyanotic tho)
Cyanotic or Noncyanotic: Pulmonary stenosis
Noncyanotic
Cyanotic or Noncyanotic: Aortic stenosis
Noncyanotic
Cyanotic or Noncyanotic: AV canal
Noncyanotic
Cyanotic or Noncyanotic: Coarctation of the aorta
Noncyanotic
Cyanotic or Noncyanotic: Ebstein’s Anomaly
Cyanotic
Cyanotic or Noncyanotic: HLHS
Cyanotic
Cyanotic or Noncyanotic: Pulmonary atresia
Cyanotic
Cyanotic or Noncyanotic: Tetrology of Fallot
Cyanotic
Cyanotic or Noncyanotic: TAPVR
Cyanotic
Cyanotic or Noncyanotic: TGA
Cyanotic
Cyanotic or Noncyanotic: Truncus Arteriosus
Cyanotic
Cyanotic or Noncyanotic: Tricuspid atresia
Cyanotic
DiGeorge syndrome is associated with what cardiac defects? (4)
Interrupted aortic arch, Truncus arteriosus, TOF, VSD
Trisomy 21 is associated with what cardiac defects? (3)
AV canal defect, ASD, PDA
Marfan syndrome is associated with what cardiac defect?
aortic root enlargement
Noonan syndrome is associated with what cardiac defects?
PS or hypertrophic cardiomyopathy
Trisomy 13 is associated with what cardiac defects? (3)
ASD, VSD, PDA
Turner syndrome is associated with what cardiac defects? (2)
aortic valve stenosis, coarctation of aorta
2 events in systole
- isovolumetric ventricular contraction
2. ventricular ejection
2 events in diastole
- isovolumetric ventricular relaxation
2. atrial contraction
Is a split S1 normal in children?
Yes - not affected by respiration
When is a split S2 normal in children?
During inspiration
This is because increased venous return to right side of heart leads to slower contraction of RV
When is a split S2 pathologic in children?
During expiration
This would be a sign of aortic stenosis or cardiomyopathy
Loud Aortic S2 could indicate
arterial hypertension
Loud Pulmonic S2 could indicate
pulmonary hypertension
Fixed or widely split S2 could indicate what 3 events:
Late closure of pulmonic valve (ASD, Pulmonary stenosis)
Early closure of aortic valve (Severe MR)
Late closure of aortic valve (AS)
S3: Ventricular gallop from rapid ventricular filling is common in what 3 defects
MR, TR, Heart failure
S4: Atrial gallop is common in what 3 defects
Aortic stenosis, cardiomyopathy, or heart block
Non-ejection clicks:
Mitral valve prolapse
Opening snap:
Sharp, high frequency sound after S2
Mitral stenosis
Aortic ejection click is heard where? What does it indicate?
LLSB
Aortic stenosis
Pulmonic ejection click is heard where? What does it indicate?
LUSB
Louder with expiration
Pulmonary stenosis or pulmonary hypertension
4 main examples of continuous murmurs
- **holosystolic murmur (seen in VSD)
- PDA
- BT shunt (single ventricle patients, post-Norwood)
- AV malformation
____ is most common innocent murmur
Still’s murmur
Type I TAPVR looks like what on x-ray?
Snowman
TOF looks like what on x-ray?
Boot
Partial anomalous pulmonary venous return looks like what on x-ray?
Sword
Transposition of the great arteries looks like what on x-ray?
Egg on a string
Infants with serious cardiac disease present early with (3):
- Congestive heart failure and pulmonary edema
- Cyanosis (central, differential)
- Shock