Equations of Nunn and Gregg for Predicting Peak Expiratory Flow (PEF) in Adults

Purpose: To estimate the peak expiratory flow (PEF) in an adult to identify airflow obstruction, particularly in asthma.

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Evaluation

Are you trying to estimate a person's peak expiratory flow?

Yes

Gender of patient

Male

Female

Age

years

Height

Is the patient's peak expiratory flow known?

Yes

Peak expiratory flow

L/min

Results

Please fill out required fields.

Results Interpretation and Description References Next Steps

Data complete?

Evaluation appropriate?

Predicted PEF for age, gender and height in

Observed PEF as percent of expected

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Clinical Diagnosis, Including Family History For Genetics
Other Testing
Criteria For Diagnosis
- Assessing Obstructive and Restrictive Patterns
Severity, Prognosis, Stage
Complications

Therapy

Administration
- Bronchodilator Response

Patient Concerns

Informed Consent
- "Lung Age" of Morris et al

Specialty

Pulmonology

Objective

clinical diagnosis
including family history for genetics
other testing
severity
prognosis
stage

ICD-10

J20-J22 - Other acute lower respiratory infections
J40-J47 - Chronic lower respiratory diseases
J20-J22 - Other acute lower respiratory infections
J40-J47 - Chronic lower respiratory diseases
R94.2 - Abnormal results of pulmonary function studies

Info

Purpose: To estimate the peak expiratory flow (PEF) in an adult to identify airflow obstruction, particularly in asthma.

Specialty: Pulmonology

Objective: clinical diagnosis, including family history for genetics, other testing, severity, prognosis, stage

ICD-10: J20-J22, J40-J47, J20-J22, J40-J47, R94.2,

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