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Cardiac study guide 1 and 2
Terms in this set (16)
What is the correct sequence for an unconscious/unresponsive patient and why?
C-A-B: circulation, airway, and breathing
circulation first in an unconscious patient in case we need to do compressions or defibrillation. The way you'd treat a conscious patient is A-B-C.
Compression/ventilation ratio for 1 rescuer VS 2 rescuer
1 rescuer: 30:2
2 rescuer: 30:2
INFANT 2 rescuer: 15:2
Proper compression rate during CPR
100-120 beats per minute
Proper Depth of compressions for
Adults: at least 2 inches
Children: 1/3 depth (2 inches)
Infants: 1/3 depth (1.5 inches)
Why is allowing the chest to recoil during CPR critical to survival>
so the blood can flow back intp the heart on contraction--without it the heart doesnt full with blood and the brain isnt properly perfused
max amount of interruption during CPR
With an advanced airway in place, what is the proper ventilation ratio during CPR?
2 breaths to every 30 compressions 0R THE ANSWER GIVEN BY PREP WHICH IS 1 breath every 6seconds--10 breaths per minute
When first coming across an adult patient in cardiac arrest, when should the first defibrillation be delivered
CPR until pads are attached then defibrillate immediately
What 2 heart rhythms are considered shockable?
vfib and pulseless ventricular tachycardia
bystanders performed 5 minutes of CPR before you arrived. You took over compressions and defibrillation victim. What would be your next action to take?
perform 2 minutes of CPR then a rhythm check
the flow of blood
Deoxygenated blood travels through the superior and inferior vena cavae to the right atrium. The blood is pumped by the right ventricle through the pulmonary artery to the lungs. This is where the blood is oxygenated before being sent back through pulmonary veins to the left atrium. Blood flows into the left ventricle, which is responsible for pumping blood into the aorta and then out through arteries to the body. Arteries branch off into arterioles, and then into capillaries, which is where nutrient exchange occurs with cells. Lastly, blood flows back into veins, to the inferior/superior vena cava before returning to the heart.
what is the difference between systolic and diastolic blood pressure
Systolic: pressure in blood vessels while the heart is constructing. 120
Diastolic: pressure in the blood vessels when the heart is at rest. 80mmHg
Important roles of Red Blood Cells
1. oxygen to the cells
2. transport carbon dioxide to the lungs
what are 7 signs of cardiac compromise?
1. abnormal blood pressure
2. pain, pressure in the chest or abdomen
5. Abnormal pulse
6. Sudden onset of nausea/vomiting
Asculating of the lungs reveals crackles and the patient is having difficulty breathing. Which side of the heart do you believe is affected? why?
left...SOB and crackles indicates left-sided heart failure. The failure of the left ventricle to effectively pump blood to the body causes the blood to back up or be congested in the lungs
Right sided Heart Failure causes blood to back up into the body causing pitting edema throughout the body. Whats the cause and what is another name for this condition?
Cor Pulmonale. the usual cause is pulmonary disease, such as pulmonary hypertension or pulmonary stenosis (obstruction within the pulmonary artery)
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