Pediatric Cardiac

Anatomy

100

I am the strongest chamber of the heart

Left ventricle

200

I send blood to the lungs to pick up oxygen

Pulmonary artery

300

I have the highest pressure within the heart.

Aorta

400

I am the only bicuspid valve in the heart

Mitral valve

500

I surround the heart, have a fluid filled sac, and help protect it.

Pericardium

Cardiac Output

100

Equation for CO

HR x SV

200

Also known as the diastolic pressure left in the LV after contraction

Preload

300

I am the force against which the heart must pump

Afterload

400

I increase in response to stress to send more blood to my body per minute.

Heart rate

500

CO is ___? in response to LV failure

decreased/absent

Physiology

100

I am also known as the pacemaker of the heart

SA Node

200

I open fast and are responsible for atrial depolarization

Sodium channels

300

I contain the contractile cells of the heart.

Myocardium

400

There are two types of channels for me and I play an important part in cardiac contractility

Calcium

500

Resting membrane potential of a cardiac myocyte

-90mv

Assessment

100

What is 2 - 3 seconds

Normal capillary refill

200

I am irregular, rate low for age, P for every QRS, intervals within normal

Sinus bradycardia

300

90 + 2x age

Normal blood pressure for age

400

Thready pulses, low blood pressure, pale, lethargic

Findings of poor perfusion

500

If I am left untreated there is a risk I will no longer be able to perfuse my heart.

SVT (or severe tachycardia)

What Rhythm am I?

100

I am regular, normal rate for age, have a P for every QRS and intervals within normal.

Normal sinus rhythm

200

You can try tossing ice on my face to see if I will convert

SVT

300

Description of a rhythm showing V tach

Wide QRS, fast rate

400

My P wave and QRS are there, but are not lined up together.

Heart block

500

My rhythm shows an isoelectric line with no variation

Asystole