NSG4100 - EXAM 3 QUESTIONS AND ANSWERS A+
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What is systole?
When the heart contracts to pump blood out (depolarization)
What is diastole?
When the heart relaxes after contractions (depolarization)
What is stroke volume (SV)?
Volume of blood ejected during ventricular contraction
What is cardiac output (CO)?
HR x SV
- amt of blood the heart pumps from each ventricle per minute
- measured in L per min
What is normal EF of the left ventricle?
55-65%
What is preload?
- amount of ventricular stretch at the end of diastole
- initial stretching of the ventricles prior to contraction
- the heart loading up for the next big squeeze of the ventricles during systole
What is afterload (systemic vascular resistance [SVR])?
Amount of resistance the heart must overcome to open the aortic valve and push the
blood volume out into the systemic circulation
Pre-load is the amount of blood in the _______________ at the end of ________.
This is reflected as the central venous pressure.
right ventricle
diastole
PRESSURE MONITORING SYSTEM: the pressure bag is maintained at 500mmHg.
T/F?
False. It's maintained at 300mmHg
PRESSURE MONITORING SYSTEM: NS is used as the flush system solution. T/F?
True
PRESSURE MONITORING SYSTEM: the transducer does not convert the pressure
into an electrical signal; it uses osmosis. T/F?
False. It does convert the pressure into an electrical signal
, What would NOT be a cause of sinus bradycardia?
Amphetamines
The effects of hypokalemia include the following:
- sinus brady
- premature vent tachycardias
- vent fib
Your pt converts to ventricular fibrillation and is non-responsive. What is your
PRIORITY action?
High quality compressions
Which is a CORRECT pt statement about a wearable debrillator vest? If a
threatening rhythm is detected?
The vest delivers a treatment shock to restore heart rhythm
Pts with pacemakers must avoid close or prolonged contact with electric devices
or devices that have strong magnetic fields. T/F?
True
What is the purpose of invasive coronary artery procedures?
Aimed at opening the blocked coronary artery
What is thrombolysis?
Loosening or dissolving of a clot
- enzymatic digestion of thrombus to open lumen using streptokinase and tPA
- performed within 60min from arrival to ED - Door to Balloon time
When should thrombolysis not be used?
Bleeding d/o or pt's who are bleeding
Cardiac tamponade results in _________ venous return due to atrial ___________.
decreased, compression
Hydrochlorothiazide is the diuretic of choice for pt's with cariogenic pulmonary
edema. T/F?
False. Its loop diuretics
Cardiomyopathy is caused by _________ stroke volume that results in _________
cardiac workload.
decreased, increased
Dilated cardiomyopathy includes all the following s/s:
- diastolic murmur
- palpitations
- fatigue
*NOT wt loss
Education on post heart transplant care must include all of the following:
- normal resting heart rate is 90-110 BPM
- increased risk for osteoporosis
- must warm up and cool down with exercises
*chest pain is NOT a common complication
A 35-year-old male was knifed in the street fight, admitted through the ED, and is
now in the ICU. An assessment of his condition reveals the following symptoms:
respirations shallow and rapid, CVP 15 cm H2O, BP 90 mm Hg systolic, skin cold
and pale, urinary output 60-100 mL/hr for the last 2 hours. Analyzing these
GRADED. Buy Quality Materials!
What is systole?
When the heart contracts to pump blood out (depolarization)
What is diastole?
When the heart relaxes after contractions (depolarization)
What is stroke volume (SV)?
Volume of blood ejected during ventricular contraction
What is cardiac output (CO)?
HR x SV
- amt of blood the heart pumps from each ventricle per minute
- measured in L per min
What is normal EF of the left ventricle?
55-65%
What is preload?
- amount of ventricular stretch at the end of diastole
- initial stretching of the ventricles prior to contraction
- the heart loading up for the next big squeeze of the ventricles during systole
What is afterload (systemic vascular resistance [SVR])?
Amount of resistance the heart must overcome to open the aortic valve and push the
blood volume out into the systemic circulation
Pre-load is the amount of blood in the _______________ at the end of ________.
This is reflected as the central venous pressure.
right ventricle
diastole
PRESSURE MONITORING SYSTEM: the pressure bag is maintained at 500mmHg.
T/F?
False. It's maintained at 300mmHg
PRESSURE MONITORING SYSTEM: NS is used as the flush system solution. T/F?
True
PRESSURE MONITORING SYSTEM: the transducer does not convert the pressure
into an electrical signal; it uses osmosis. T/F?
False. It does convert the pressure into an electrical signal
, What would NOT be a cause of sinus bradycardia?
Amphetamines
The effects of hypokalemia include the following:
- sinus brady
- premature vent tachycardias
- vent fib
Your pt converts to ventricular fibrillation and is non-responsive. What is your
PRIORITY action?
High quality compressions
Which is a CORRECT pt statement about a wearable debrillator vest? If a
threatening rhythm is detected?
The vest delivers a treatment shock to restore heart rhythm
Pts with pacemakers must avoid close or prolonged contact with electric devices
or devices that have strong magnetic fields. T/F?
True
What is the purpose of invasive coronary artery procedures?
Aimed at opening the blocked coronary artery
What is thrombolysis?
Loosening or dissolving of a clot
- enzymatic digestion of thrombus to open lumen using streptokinase and tPA
- performed within 60min from arrival to ED - Door to Balloon time
When should thrombolysis not be used?
Bleeding d/o or pt's who are bleeding
Cardiac tamponade results in _________ venous return due to atrial ___________.
decreased, compression
Hydrochlorothiazide is the diuretic of choice for pt's with cariogenic pulmonary
edema. T/F?
False. Its loop diuretics
Cardiomyopathy is caused by _________ stroke volume that results in _________
cardiac workload.
decreased, increased
Dilated cardiomyopathy includes all the following s/s:
- diastolic murmur
- palpitations
- fatigue
*NOT wt loss
Education on post heart transplant care must include all of the following:
- normal resting heart rate is 90-110 BPM
- increased risk for osteoporosis
- must warm up and cool down with exercises
*chest pain is NOT a common complication
A 35-year-old male was knifed in the street fight, admitted through the ED, and is
now in the ICU. An assessment of his condition reveals the following symptoms:
respirations shallow and rapid, CVP 15 cm H2O, BP 90 mm Hg systolic, skin cold
and pale, urinary output 60-100 mL/hr for the last 2 hours. Analyzing these
