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CCRN CRITICAL CARE REGISTERED NURSE EXAM
LATEST 2024/2025 QUESTIONS AND 100% CORRECT
ANSWERS TEST BANK
CO calculation - (answers)HR x SV/1000ml
Normal CO - (answers)4-8L/min
Normal CI - (answers)Cardiac index 2.2-4L/min
CI calculation - (answers)CO/BSA (body surface area)
BP calculation - (answers)BP = CO x SVR
Normal MAP - (answers)mean arterial pressure 70-105mmHg
MAP calculation - (answers)Systolic BP + (Diastolic BP x2)/3
Normal PP - (answers)30-40
PP calculation - (answers)PP = SBP-DBP
What are the normal values for CVP and RAP? - (answers)-Central Venous
Pressure 2-6mmHg
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-Right atrial pressure 2-8mmHg
What is the normal value for PAWP/PAOP? - (answers)Pulmonary artery
Wedge/occlusion pressure 5-12mmHg
What is the normal value for PVR? - (answers)-Pulmonary Vascular Resistance
<250 dynes/sec/cm^-5
What is the normal value for SVR? - (answers)Systemic Vascular Resistance 800-
1400 dynes/sec/cm^-5
SVR Calculation - (answers)((MAP-CVP)/CO )x80
What is a normal LVEF/EF - (answers)Left ventricular ejection 50-70%
What is the calculation for LVEF - (answers)SV/EDV (end diastolic volume)
What is a normal SV - (answers)-Stroke Volume 60-100ml/beat
SV calculation - (answers)(CO/HR) x 1000ml
What is PAP - (answers)Pulmonary artery pressure
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What are the normal values of PAS, PAD, PAM? - (answers)Pulm artery systolic:
20-30mmHg
Pulm artery diastolic: 5-10mmHg
Pulmonary artery mean: 10-15mmHg
Normal SvO2 - (answers)Systemic venous oxygen saturation: 60-80%
Normal SpO2/SaO2 - (answers)Arterial oxygen saturation: >93%
Normal PO2 or PaO2 - (answers)Partial pressure of oxygen: 80-100mmHg
Normal DO2 (supply) - (answers)100 ml/min
DO2 calculation - (answers)DO2 = CO x Arterial Oxygen content
Normal VO2 (demand) - (answers)250 ml/min
What is the purpose of the suction control chamber on a chest tube? -
(answers)Regulates the negative pressure because if the pressure in the pleural
space is positive the lung will collapse.
What is the purpose of the water seal chamber on a chest tube? - (answers)Acts
as a one-way valve allowing air in but not out
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What is the purpose of the drainage collection of a chest tube? -
(answers)Drains/collects fluid from the pleura
4 Purposes of a chest tube 4 - (answers)1 Removal of air, pus, or blood
2 restore negative pressure to pleural space
3 Re-expand a collapsed lung
4 Drain blood from around heart
What is the purpose of a mediastinal chest tube? - (answers)To drain blood from
around the heart
If you insert a mediastinal chest tube and drain blood from around heart can you
reinfuse it back into the body? - (answers)Yes w/in 4 hrs
What usually causes a pneumothorax in the ICU? - (answers)1 Vent barotrauma
2 trauma due to central placement, after thoracentesis, post lung biopsy/CPR or
after chest trauma
2 types of chest tubes - (answers)wet and dry suction
What do you monitor in the water seal chamber? - (answers)that the water is
filled to the 2cm water line
CCRN CRITICAL CARE REGISTERED NURSE EXAM
LATEST 2024/2025 QUESTIONS AND 100% CORRECT
ANSWERS TEST BANK
CO calculation - (answers)HR x SV/1000ml
Normal CO - (answers)4-8L/min
Normal CI - (answers)Cardiac index 2.2-4L/min
CI calculation - (answers)CO/BSA (body surface area)
BP calculation - (answers)BP = CO x SVR
Normal MAP - (answers)mean arterial pressure 70-105mmHg
MAP calculation - (answers)Systolic BP + (Diastolic BP x2)/3
Normal PP - (answers)30-40
PP calculation - (answers)PP = SBP-DBP
What are the normal values for CVP and RAP? - (answers)-Central Venous
Pressure 2-6mmHg
,2|Page
-Right atrial pressure 2-8mmHg
What is the normal value for PAWP/PAOP? - (answers)Pulmonary artery
Wedge/occlusion pressure 5-12mmHg
What is the normal value for PVR? - (answers)-Pulmonary Vascular Resistance
<250 dynes/sec/cm^-5
What is the normal value for SVR? - (answers)Systemic Vascular Resistance 800-
1400 dynes/sec/cm^-5
SVR Calculation - (answers)((MAP-CVP)/CO )x80
What is a normal LVEF/EF - (answers)Left ventricular ejection 50-70%
What is the calculation for LVEF - (answers)SV/EDV (end diastolic volume)
What is a normal SV - (answers)-Stroke Volume 60-100ml/beat
SV calculation - (answers)(CO/HR) x 1000ml
What is PAP - (answers)Pulmonary artery pressure
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What are the normal values of PAS, PAD, PAM? - (answers)Pulm artery systolic:
20-30mmHg
Pulm artery diastolic: 5-10mmHg
Pulmonary artery mean: 10-15mmHg
Normal SvO2 - (answers)Systemic venous oxygen saturation: 60-80%
Normal SpO2/SaO2 - (answers)Arterial oxygen saturation: >93%
Normal PO2 or PaO2 - (answers)Partial pressure of oxygen: 80-100mmHg
Normal DO2 (supply) - (answers)100 ml/min
DO2 calculation - (answers)DO2 = CO x Arterial Oxygen content
Normal VO2 (demand) - (answers)250 ml/min
What is the purpose of the suction control chamber on a chest tube? -
(answers)Regulates the negative pressure because if the pressure in the pleural
space is positive the lung will collapse.
What is the purpose of the water seal chamber on a chest tube? - (answers)Acts
as a one-way valve allowing air in but not out
, 4|Page
What is the purpose of the drainage collection of a chest tube? -
(answers)Drains/collects fluid from the pleura
4 Purposes of a chest tube 4 - (answers)1 Removal of air, pus, or blood
2 restore negative pressure to pleural space
3 Re-expand a collapsed lung
4 Drain blood from around heart
What is the purpose of a mediastinal chest tube? - (answers)To drain blood from
around the heart
If you insert a mediastinal chest tube and drain blood from around heart can you
reinfuse it back into the body? - (answers)Yes w/in 4 hrs
What usually causes a pneumothorax in the ICU? - (answers)1 Vent barotrauma
2 trauma due to central placement, after thoracentesis, post lung biopsy/CPR or
after chest trauma
2 types of chest tubes - (answers)wet and dry suction
What do you monitor in the water seal chamber? - (answers)that the water is
filled to the 2cm water line
