Please select the eligibility criteria that correspond to the clinical trial below.
Title: Effect of Introducing a Positive Expiratory Pressure Device During Inhalation of Hypertonic Saline in Patients With Cystic Fibrosis: a Randomized Crossover Trial.
Brief Summary: This trial aims to analyze whether the inhalation of hypertonic saline combined with a positive expiratory pressure (PEP) device increases the amount of sputum expectorated during the chest physiotherapy session ( inhalation + bronchial drainage).


Options:
A: Inclusion Criteria:

* Pass the inhalation test
* Chronic sputum production, at least ≥ 10 ml /24h
* Cystic Fibrosis (CF) diagnosed ( established by genotype or sweat sodium\>70 mmol/l or sweat chloride of\>60 mmol/l)
* Clinically stable at the time of recruitment (defined as no requirement for antibiotics or change in respiratory medication in the preceding 4 weeks)
* Trained in the use of autogenic drainage technique (at least 6 months)
* Inhaling hypertonic saline since at least 6 months
* To be able to provide written, informed consent and perform the protocol and the evaluations

Exclusion Criteria:

* Active massive hemoptysis during the previous 2 months
* Patient in transplantation or retransplantation list
* Patient already participating in another study at the same time
B: Inclusion Criteria:

* Confirmed diagnosis of CF based on either two CF-causing mutations and/or a sweat chloride concentration during two tests of \> 60 mmol/l
* Patients that are able to provide sputum samples
* Adult age ≥ 18 years

Exclusion Criteria:

* Unstable condition affecting participation in the exercise experiments (i.e., major hemoptysis or pneumothorax within the last 3 months, acute exacerbation and iv-antibiotics during the last 4 weeks, unstable allergic bronchopulmonary aspergillosis, listed for lung transplantation, major musculoskeletal injuries such as fractures or sprains during the last 2 months, others according to the impression of the doctor)
* Cardiac arrhythmias with exercise
* Requiring additional oxygen with exercise
* Colonization with Burkholderia cenocepacia
* Status post lung transplantation
C: Inclusion Criteria:

* Acute or chronic disease requiring secretion mobilization as per hospital protocol

Exclusion Criteria:

* Absolute contraindications for positional changes
* Absolute contraindications for chest percussion
* Women visibly pregnant
* Previous enrollment in study
* Previous CPT or Vest treatment
D: Inclusion Criteria:

1. Diagnosis of CF established by sweat chloride \> 60 mmol/L.
2. Age older than 18 years.
3. History of chronic daily sputum production.
4. Currently on a home therapeutic regimen that includes some form of BD performed at least 2 times daily that also includes concomitant use of an inhaled mucolytic and inhaled bronchodilator.
5. FVC and FEV1 \> 40%-predicted, and with stable lung function (no greater than a 10% variation in lung function parameters over the preceding 4 months).
6. Evaluated at the University of Minnesota CF Center 3 or more times in the preceding 12 months.

Exclusion Criteria:

1. Hospitalization for CF pulmonary complications in the 2 months preceding enrollment.
2. Hemoptysis \> 60 cc in a single episode in the 4 weeks preceding enrollment.
3. Chronic chest pain.
4. Participation in another clinical trial in the previous 30 days.
5. Use of intravenous antibiotics in the 2 months preceding enrollment.

Answer: A