1) An arterial line allows continuous monitoring of a patient's blood pressure by connecting an arterial catheter to a pressure transducer. The transducer converts pressure oscillations into an electrical waveform displayed on a monitor.
2) The arterial waveform provides information about cardiovascular physiology and hemodynamics. An accurate waveform depends on proper catheter placement, monitoring equipment setup, and avoiding issues like dampening or resonance.
3) Key portions of the arterial waveform include the anacrotic limb, anacrotic notch, dicrotic limb, and dicrotic notch, which reflect events in the cardiac cycle and can be affected by conditions like vascular resistance.
Central venous pressure (CVP) describes the blood pressure in the thoracic vena cava near the right atrium. Normal CVP ranges from 0-15 cm H2O depending on measurement point. CVP is affected by factors like volume status, respiration, and heart function. Central venous catheters are used to monitor CVP and administer IV medications and fluids long-term. Types include non-tunneled short term catheters and tunneled or implanted ports for longer term use. Nurses must properly insert, maintain, and discontinue central lines to prevent complications and ensure accurate CVP readings.
1) An arterial line allows continuous monitoring of a patient's blood pressure by connecting an arterial catheter to a pressure transducer. The transducer converts pressure oscillations into an electrical waveform displayed on a monitor.
2) The arterial waveform provides information about cardiovascular physiology and hemodynamics. An accurate waveform depends on proper catheter placement, monitoring equipment setup, and avoiding issues like dampening or resonance.
3) Key portions of the arterial waveform include the anacrotic limb, anacrotic notch, dicrotic limb, and dicrotic notch, which reflect events in the cardiac cycle and can be affected by conditions like vascular resistance.
Central venous pressure (CVP) describes the blood pressure in the thoracic vena cava near the right atrium. Normal CVP ranges from 0-15 cm H2O depending on measurement point. CVP is affected by factors like volume status, respiration, and heart function. Central venous catheters are used to monitor CVP and administer IV medications and fluids long-term. Types include non-tunneled short term catheters and tunneled or implanted ports for longer term use. Nurses must properly insert, maintain, and discontinue central lines to prevent complications and ensure accurate CVP readings.
The document discusses central venous pressure (CVP) monitoring. It aims to explain what CVP is, the purposes and indications for monitoring it, the equipment needed, nursing roles and responsibilities, potential complications, and how to interpret CVP readings. Specifically, CVP refers to the blood pressure in the right atrium and is monitored using a catheter placed in the jugular or subclavian vein. CVP provides information about a patient's fluid balance, circulating blood volume, and right heart function. Nurses must understand how to set up monitoring equipment properly and know that abnormal CVP readings should be considered in the full clinical context of the patient.
CVP digunakan untuk memantau tekanan vena sentral dan fungsi ventrikel kanan. Nilai normal CVP adalah 3-8 mmHg. Komplikasi yang dapat terjadi meliputi emboli udara, pneumotoraks, dan infeksi, namun dapat dicegah dengan teknik steril dan memantau tanda infeksi.
Central venous pressure (CVP) is the pressure measured in the central veins close to the heart and indicates right atrial pressure. CVP is measured using a catheter placed in a central vein that is connected to a manometer or pressure transducer. Normal CVP ranges from 1-7 mmHg or 5-10 cm H2O. CVP monitoring provides information about cardiac function and volume status and is used to guide fluid administration and assess patients' hemodynamic status. Complications of CVP monitoring include hemorrhage, pneumothorax, infection, and thrombosis.
This document discusses central venous pressure (CVP), including indications for CVP monitoring, measurement, waveform interpretation, and techniques for central venous cannulation. It notes that CVP can be used to assess intravascular volume status, right ventricular function, and is indicated for major procedures involving fluid shifts. The internal jugular vein and subclavian vein are common access sites, and ultrasound guidance can help with cannulation. Potential complications include arterial puncture, pneumothorax, and infection.
9. 犖犖迦犖犖犖伍 犖朽犖 犖橿顕 犢犖犢 CVP 犖犖橿犖
Reduced vascular volume
Decreased mean systemic pressure
(e.g., as in late shock state)
Venodilation (drug induced)
10. Fluid Challenge Test
Initial CVP <8 8-15 >15 cm H2O
PAOP <12 12-16 >16 mm Hg
Volume & Rate 200 mL/10 min 100 mL/10 min 50 mL/10 min
During infusion, CVP rises >5 cm H2O
or PAOP rises >7 mm Hg
Yes No
Stop challenge Complete the volume
Wait 10 min Wait 10 min
CVP change >5 3-5 <2 3-5 <2
PAOP change >7 4-7 <3 4-7 <3
10
11. Central Venous Pressure Monitoring
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iv 犢犖犢犖迦犖園 犖犖о犖犖橿犖迦犖犖ム厳犖
0.9 NSS 100 ml. 犢犖ム犖
犖犢犖犖犖迦権 IV 犢犖犢犖迦犖園犖犖園硯
transducer 犢犖ム犖о犢犖犖犖迦権
extension 犢犖犢犖迦犖園
transducer 犖犢犖犢犖犢犖
犖犖橿顕犖犖犖園犖о顕犖transducerg
犢犖犢犖迦犖園犢犖犖迦犖橿犖迦犖犖ム厳犖 犢犖犖∇犖園硯
犢犖犢犖犖犢犖犖犖犖∇弦犢犢犖犖犖橿顕犢犖犖犢犖
phlebostatic axis 犖犖劇賢
midaxillary line 犖犖園
fourth intercostal
space
12. Central Venous Pressure Monitoring
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犢犖犖劇犖犢犖ム air 犖犖朽犖犖∇弦犢犢犖
set 犖犖園犖犖犖÷ 犢犖犖犢犖
犢犖ム犖о犢犖犖犖迦権
extension 犢犖犢犖迦犖園
犖犖迦権 cutdown 犖犖犖劇賢
subclavian vein
犢犖犖 subclavian
犖犢犖犢犖犢犖迦犖園犖犖迦権 犖犖
犖犖橿犖迦犖迦献 犖犖犖劇賢
proximal lumen
15. Central Venous Pressure Monitoring
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calibrate 犢犖犢 cvp = 0
mmHg
犢犖犖犢犖犢犖ム犖о犢犖犖÷幻犖
three
way 犖÷顕犖犢犖迦犖犖伍 three
way 犖犖迦検犢犖犖巌検犢犖ム鍵犖犖巌犖犖伍
18. 犖犖迦牽犖犢犖 犖犖犢犖 CVP wave
A wave - due to atrial
contraction. Absent in atrial
fibrillation. Enlarged in
tricuspid stenosis,
pulmonary stenosis and
pulmonary hypertension.
油C wave - due to bulging of
tricuspid valve into the right
atrium or possibly
transmitted pulsations from
the carotid artery.
X descent - due to atrial
relaxation.
油V wave - due to the rise in
atrial pressure before the
tricuspid valve opens.
Enlarged in tricuspid
regurgitation
20. a wave
Caused by atrial
contraction
(follows the P-
wave on EKG)
End diastole
Corresponds
with atrial
kick which
causes filling of
the right
21. c wave
Atrial pressure
decreases after
the a wave as a
result of atrial
relaxation
The c wave is
due to isovolemic
right ventricular
contraction;
closes the
tricuspid valve
and causes it to
22. x descent
Atrial pressure
continues to
decline due to
atrial relaxation
and changes in
geometry caused
by ventricular
contraction
Mid-systolic event
Systolic collapse
in atrial pressure
23. v wave
The last atrial
pressure
increase is
caused by filling
of the atrium
with blood from
the vena cava
Occurs in late
systole with the
tricuspid still
closed
24. y descent
Decrease in atrial
pressure as the
tricuspid opens and
blood flows from
atrium to ventricle
Diastolic collapse
in atrial pressure
25. Tricuspid Regurgitation
The right
atrium gains
volume during
systole - so the
c and v wave
is much higher
The right
atrium sees
right ventricular
pressures and
the pressure
26. Tricuspid Stenosis
Problem with atrial
emptying and a
barrier to ventricular
filling on the right side
of the heart
Mean CVP is elevated
a wave is usually
prominent as it tries
to overcome the
barrier to emptying
y descent muted as
a result of decreased
outflow from atrium to
ventricle
27. Pericardial Constriction
Limited venous
return to heart,
elevated CVP,
end-diastolic
pressure
equalization in all
cardiac chambers
Prominent a
and v waves,
steep x and y
descents
Characteristic M
28. Cardiac Tamponade
Changes in atrial and
ventricular volumes
are coupled, so total
cardiac volume does
not change when
blood goes from
atrium to ventricle
CVP becomes
monophasic with a
single, prominent x
descent with a muted
y descent
Similar to pericardial
constriction but not
exactly the same
29. 犖犖迦硯犖萎犖犖犖犖犢犖 犖犖犖園犖 犖犖迦犖犖園犖 犖犖犖犖犖迦牽犢犖犢犖 犖迦権
CVP 犢犖ム鍵犖犖迦牽犖о険犖 犖÷元犖 犖園 犖犖朽
1.油 Hemothorax
2.油 Pneumothorax
3.油 Nerve injury
4.油 Arterial puncture
5.油 Thoracic duct perforation
6.油 Arrhythmias
7.油 Systemic or local infection
8.油 Perforation or erosion of vascular structure
9.油 Thrombosis
10.油油Air embolism
11.油油Blood loss 犖犖迦犖犢犖 犖犢犖 犖犖ム幻犖
12.油油Volume overload 犖犖迦犖ム厳犖 犖犖犖園 rate IV 犖犖ム険犖 犖о険犖
CVP油油