Predicted Average Peak Expiratory Flow Chart - Children, Adolescent, Adults
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1APPENDIX. Predicted Average Peak Expiratory Flow
Note: These charts are for informational purposes only. Spirometry should be used for diagnosis
and staging. "Personal best" measures should be used for the asthma treatment plan.
A. Predicted Average Peak Expiratory Flow forNormal Children and Adolescents (liters/minute)
Height (inches)
Males & Females
Height (inches)
Males & Females
43
147
56
320
44
160
57
334
45
173
58
347
46
187
59
360
47
200
60
373
48
214
61
387
49
227
62
400
50
240
63
413
51
254
64
427
52
267
65
440
53
280
66
454
54
293
67
467
55
307
Adapted from: Polger G, Promedhat V: Pulmonary function testing in children: Techniques and standards,
Philadelphia. W.B. Saunders, 1971.
B. Predicted Average Peak Expiratory Flow for Normal Males (liters / minute)
HEIGHT
AGE
60"
65"
70"
75"
80"
20
554
602
649
693
740
25
543
590
636
679
725
30
532
577
622
664
710
35
521
565
609
651
695
40
509
552
596
636
680
45
498
540
583
622
665
50
486
527
569
607
649
55
475
515
556
593
634
60
463
502
542
578
618
65
452
490
529
564
603
70
440
447
515
550
587
Adapted from: Leiner GC, et al.: Expiratory peak flow rate. Standard values for normal subjects. Use as a
clinical test of ventilatory function. Am Resp Dis 88:644, 1963.
C. Predicted Average Peak Expiratory Flow for Normal Females (liters / minute)
HEIGHT
AGE
55"
60"
65"
70"
75"
20
390
423
460
496
529
25
385
418
454
490
523
30
380
413
448
483
516
35
375
408
442
476
509
40
370
402
436
470
502
45
365
397
430
464
495
50
360
391
424
457
488
55
355
386
418
451
482
60
350
380
412
445
475
65
345
375
406
439
468
70
340
369
400
432
461
Adapted from: Leiner GC, et al.: Expiratory peak flow rate. Standard values for normal subjects. Use as a
clinical test of ventilatory function. Am Resp Dis 88:644, 1963.
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