Download  Print this page

Assessing Suspicious Spo2 Readings - Philips Expression MR400 Instructions For Use Manual

Mri patient monitoring system.
Hide thumbs
   
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418

Advertisement

Item Name
1
SpO2 VS waveform
2
Alarm flag area
SPO2 VS box label
3
4
Heart rate numeric
5
Unit of measure
6
SpO2 upper alarm limit
7
SpO2 lower alarm limit
8
SpO2 numeric
9
Perfusion index

Assessing Suspicious SPO2 Readings

Pulse oximetry measurements are statistically distributed. With newer algorithms, such as FAST‐
SPO2, the calculation of SPO2 is not directly linked to the correct detection of each pulse. When 
the pulse rate is very low or a strong arrhythmia is present, the SPO2/plethysmography pulse 
rate may differ from the heart rate calculated from ECG. This does not indicate an inaccurate 
SPO2 value. If you doubt the measured SPO2, use the plethysmography wave to assess the signal 
quality.
WARNING
Always shield (for example, cover with opaque material) the SPO2 clip or grip from
extraneous incidental light sources, as such light can cause erroneous SPO2 readings or
pulse detection errors.
Expression MR400 Instructions for Use                                                                                                                                     Monitoring SPO2   6‐9
Definition
Is the detected SpO2 (pleth) pulsatile waveform (Trace C), automatically adjusted for
proper viewing if above a minimum level
Note
To change the waveform speed, see Sweep Speed on page 3-25.
Displays SPO2 alarm flags when detected; see page 4-31.
Indicates the SpO2 vital sign parameter, and accesses the SPO2 menu
Is the patient's detected heart rate measurement
Indicates that the heart rate numeric is given in BPM (beats per minute)
Is the upper limit setting for the SpO2 alarm, and accesses the SPO2 Alarm Limits
menu
Is the lower limit setting for the SpO2 alarm, and accesses the SPO2 Alarm Limits
menu
Is the patient's detected arterial oxygen saturation measurement, given as a percentage
Is the value for the portion of the measured signal caused by the pulsating arterial
blood flow, which can be used as a measurement quality indicator; see page 6-15

Advertisement

Chapters

Table of Contents

   Related Manuals for Philips Expression MR400

Comments to this Manuals

Symbols: 0
Latest comments: