Справочник Пользователя для Innokas Yhtyma Oy VC150

9-8

VC150 Vital Signs Monitor

KO00065K

: Description

If patient activity presents a problem, try one or more of the following remedies 
to correct the problem.

•

Verify the sensor is properly and securely applied.

•

Move the sensor to a less active site.

•

Use an adhesive sensor that improves patient skin contact.

•

Use a new sensor with fresh adhesive backing.

•

Keep the patient quiet and still, if possible.

Application issues and certain patient conditions can affect the measurements 
of the monitoring system and cause the loss of the pulse signal.

•

Anemia — Anemia causes decreased arterial oxygen content. 
Although SpO

2

 readings may appear normal, an anemic patient 

may be hypoxic. Correcting anemia can improve arterial oxygen 
content. The pulse oximeter may fail to provide an SpO

2

 reading if 

hemoglobin levels fall below 5 gm/dl.

•

Dysfunctional hemoglobins — Dysfunctional hemoglobins such as 
carboxyhemoglobin, methemoglobin, and sulphemoglobin are 
unable to carry oxygen. SpO

2

 readings may appear normal; 

however, a patient may be hypoxic because less hemoglobin is 
available to carry oxygen. Further assessment beyond pulse 
oximetry is recommended.

•

Additional possible patient conditions may also influence 
measurements.
– Poor peripheral perfusion

– Excessive patient activity

– Venous pulsations

– Dark skin pigment

– Intravascular dyes, such as indocyanine green or methylene blue

– Externally applied coloring agents (nail polish, dye, pigmented 
cream)

– Defibrillation

– Excessive patient talking

– Respiration rate outside the range of 4 to 40 breaths per minute

– Significantly irregular cardiac rhythms (three or more events of 
irregularity observed within 30 seconds)