| obstructive lung disease | <chest medicine> A form of lung disease that manifests as acute or chronic, narrowing or blockage of the smaller airways in the lungs, causing increased resistance to airflow in the bronchial tubes (for example asthma, silicosis, chronic obstructive pulmonary disease from smoking). (27 Sep 1997) |
|---|---|
| lung diseases, obstructive | Any disorder marked by persistent obstruction of bronchial air flow. (12 Dec 1998) |
| chronic obstructive pulmonary disease | <disease> A progressive disease process that most commonly results from smoking. Chronic obstructive pulmonary disease is characterised by difficulty breathing, wheezing and a chronic cough. Treatment includes absolute avoidance from smoking, bronchodilators and oxygen for those with advanced disease. Complications include bronchitis, pneumonia and lung cancer. See: emphysema. (27 Sep 1997) |
| irreversible | Incapable of being reversed. (18 Nov 1997) |
| irreversible colloid | A colloid that is not again soluble in water after having been dried at ordinary temperature. Synonym: unstable colloid. (05 Mar 2000) |
| irreversible hydrocolloid | A hydrocolloid whose physical state is changed by an irreversible chemical reaction when water is added to a powder and an insoluble substance is formed. (05 Mar 2000) |
| irreversible process | <chemistry> Any real process, when a system undergoes the changes State 1 - greater than State 2 - greater than State 1 by any real pathway, the universe is different that before the cyclic process took place in the system. (09 Jan 1998) |
| irreversible reaction | A reaction or response by the tissues to a pathogenic agent characterised by a permanent pathologic change. (05 Mar 2000) |
| irreversible shock | Shock that has progressed beyond the stage when it will respond to transfusion or other form of treatment, and recovery is impossible. (05 Mar 2000) |
| cardiopulmonary obstructive shock | <cardiology> This term describes a number of conditions that involve a severe disturbance of the cardiopulmonary circuit resulting in shock (inadequate delivery of oxygen to the tissues). Examples include: pulmonary embolism, pericardial tamponade, pneumothorax and constrictive pericarditis. (27 Sep 1997) |
| diffuse obstructive emphysema | The major component of chronic obstructive lung disease. (05 Mar 2000) |
| obstructive apnea | Peripheral apnea, apnea either as the result of obstruction of the air passages or inadequate respiratory muscle activity. (05 Mar 2000) |
| obstructive appendicitis | Acute appendicitis due to infection of retained secretion behind an obstruction of the lumen by a fecalith or some other cause, including carcinoma of the caecum. (05 Mar 2000) |
| obstructive dysmenorrhoea | Dysmenorrhoea due to obstruction of discharge of menstrual blood, as in cervical stenosis. Synonym: obstructive dysmenorrhoea. (05 Mar 2000) |
| obstructive hydrocephalus | Hydrocephalus secondary to a block in cerebrospinal fluid flow in the ventricular system or between the ventricular system and spinal canal. Synonym: noncommunicating hydrocephalus. (05 Mar 2000) |