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The bronchial challenge test is physically demanding, and the results can be affected by muscular weakness or exhaustion. The inhaled drug can stimulate the upper airway sufficiently to cause violent coughing. This can make spirometry difficult or impossible. This test is contraindicated in patients
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with severe airway obstruction due to the obvious worsening of the obstruction. Also contraindicated by the presence of an aortic aneurysm, as spirometry will increase blood pressure, in proportion to both the patient's effort and the degree of obstruction in the lungs.
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False positives and negatives are possible in the bronchial challenge test. In addition, asthma may be temporary due to an exposure to noxious stimuli or exercise.
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is administered to counteract the effects of the bronchoconstrictor before repeating the spirometry tests. This is commonly referred to as a
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105:, or narrowing of the airways. Whereas histamine causes nasal and bronchial mucus secretion and bronchoconstriction via the
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can be used to distinguish asthma (normal to high DLCO) from COPD (reduced DLCO).
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for bronchoconstriction. The degree of narrowing can then be quantified by
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176:"The bronchial challenge test: a new direction in asthmatic management"
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Sometimes, to assess the reversibility of a particular condition, a
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142:(post BD), and may help in distinguishing asthma from
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Medical test used to assist in the diagnosis of asthma
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144:chronic obstructive pulmonary disease
125:, will react to lower doses of drug.
93:. Thus the test may also be called a
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609:High-resolution computed tomography
267:Tests and procedures involving the
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101:respectively. Both drugs provoke
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387:Laryngotracheal reconstruction
167:
1:
987:Respiratory system procedures
778:Positive pressure ventilation
160:
935:. You can help Knowledge by
878:. You can help Knowledge by
773:Negative pressure ventilator
220:"Pulmonary Function Testing"
109:, methacholine utilizes the
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117:. People with pre-existing
95:methacholine challenge test
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763:Surgical airway management
619:Ventilation/perfusion scan
419:Tracheoesophageal puncture
82:. The patient breathes in
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224:American Thoracic Society
174:Dixon C (February 1983).
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1002:Respiratory system stubs
997:Medical diagnostic stubs
874:diagnostic article is a
843:Pulmonary rehabilitation
670:Bronchial challenge test
637:Pneumonia severity index
629:Clinical prediction rule
139:post bronchodilator test
99:histamine challenge test
68:bronchial challenge test
22:Bronchial challenge test
833:Hyperinflation therapy
798:Artificial respiration
768:Mechanical ventilation
703:Bronchoalveolar lavage
604:CT pulmonary angiogram
119:airway hyperreactivity
74:used to assist in the
813:Decompression chamber
481:Heart–lung transplant
992:Veterinary diagnosis
685:Impulse oscillometry
660:Body plethysmography
808:Hyperbaric medicine
790:Respiratory therapy
708:Nasopharyngeal swab
333:Acoustic rhinometry
103:bronchoconstriction
680:Diffusion capacity
652:Lung function test
269:respiratory system
134:reversibility test
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186:(2): 199–204.
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527:Thoracentesis
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537:Thoracoscopy
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370:Laryngectomy
365:Laryngoscopy
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227:. Retrieved
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98:
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87:methacholine
72:medical test
67:
65:
42:OPS-301 code
929:pulmonology
675:Capnography
555:mediastinum
542:Thoracotomy
532:Pleurodesis
500:mediastinum
424:Tracheotomy
375:Laryngotomy
313:Somnoplasty
308:Septoplasty
303:Rhinoplasty
111:M3 receptor
107:H1 receptor
976:Categories
758:Intubation
665:Spirometry
547:Chest tube
491:Chest wall
349:Sinusotomy
323:Rhinectomy
318:Alarplasty
229:2020-03-18
161:References
146:. Also, a
123:asthmatics
121:, such as
115:spirometry
823:Nebulizer
614:Spiral CT
506:diaphragm
461:Lobectomy
380:Thyrotomy
148:DLCO test
91:histamine
84:nebulized
76:diagnosis
695:Cytology
432:bronchus
397:Lower RT
286:Upper RT
872:medical
642:CURB-65
406:trachea
277:Surgery
202:6827612
193:2561444
136:, or a
59:65806-2
34:D001985
818:Heliox
515:pleura
495:pleura
357:larynx
200:
190:
80:asthma
927:This
870:This
722:Other
583:Tests
341:sinus
70:is a
54:LOINC
47:1-714
933:stub
876:stub
504:and
448:lung
295:nose
198:PMID
28:MeSH
803:CPR
188:PMC
97:or
89:or
78:of
978::
493:,
222:.
196:.
184:75
182:.
178:.
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260:e
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204:.
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