Fluke-biomedical MPS450 User Manual download pdf (Page 66)

MPS450

Operators Manual

2-34

Table 2-26. Numeric Codes for Respiration-Artifact Settings (cont.)

Respiration-Artifact Setting Numeric Code

BP3 Respiration Artifact On 368

BP4 Respiration Artifact Off 376

BP4 Respiration Artifact On 377

Simulating the Swan-Ganz Procedure

The MPS450 reserves BP channel 4 exclusively for simulating the effect on the blood

pressure of a Swan-Ganz procedure. The Swan-Ganz simulation is available in both

automatic and manual modes.

The Swan-Ganz catheter is a soft, balloon-tipped instrument that is used for measuring

pulmonary-arterial pressure; right-atrial pressure; and reflected, left-ventricular, end-

diastolic pressure. After insertion into a vein (usually the basilic vein of the forearm), the

catheter is gently guided by the flow of the blood into the pulmonary artery. A monitor

attached to the distal lumen port supplies a reading of pulmonary-artery pressure (PAP).

Pulmonary-capillary-wedge pressure (PCWP) is determined by inflating the balloon,

which becomes wedged; when this wedge blocks blood flow, it provides a reading of the

pressure in the left side of the heart.

The MPS450 simulates the full effects of the insertion of the catheter into the heart, the

inflation of the balloon tip, the deflation of the tip, and the removal of the catheter from

the heart and body. The Swan-Ganz simulation runs as a continuous, serial cycle of four

dynamic waves, with a different wave type generated every fifteen seconds: right-atrium

CVP (central venous pressure) 15/10; followed by right ventricular 25/00; followed by

pulmonary artery 25/10; followed by pulmonary-arterial wedge 10/2. The simulation then

continues by reversing through the cycle of waves.

Action in the Menu-Control Mode

1. Press the top-menu key labeled BP.

2. Select BP4 to display the channel’s screen:

gje034.eps

3. To generate the complete Swan-Ganz cycle automatically, select AUTO. As the

automatic simulation begins, the LCD screen BP4 SWAN-GANZ AUTO displays:

gje035.eps

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 125 126

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Fluke-biomedical MPS450 User Manual Page 66