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40 Possible Causes for Dyspnea with Sudden Onset, Hypocapnia

  • Pulmonary Embolism

    Consecutive patients with clinically suspected pulmonary embolism, defined as a sudden onset of dyspnea, sudden deterioration of existing dyspnea, or sudden onset of pleuritic[doi.org] Arterial blood gas analysis showed hypoxemia-hypocapnia and D-dimer level was high.[ncbi.nlm.nih.gov] “In summary, we found that the most reliable indicator of patients with PE is sudden onset dyspnea.[clinicalprediction.com]

  • Recurrent Pulmonary Embolism

    […] in onset and may include one or many of the following: dyspnea (shortness of breath), tachypnea (rapid breathing), chest pain of a "pleuritic" nature (worsened by breathing[en.wikipedia.org] Mechanisms of hypoxemia and hypocapnia in pulmonary embolism. Am J Respir Crit Care Med 1995; 152 : 336–347. 10 Frisbie JH, Steele DJR.[nature.com] Arterial or venous blood gas measurement may show an increased alveolar to arterial oxygen (A-a) difference (sometimes called A-a gradient) or hypocapnia; one or both of these[merckmanuals.com]

  • Acute Respiratory Distress Syndrome

    Definition Acute respiratory distress syndrome (ARDS), is a life-threatening condition which is characterised by the sudden onset of severe dyspnea and hypoxaemia [1].[physio-pedia.com]

  • Pneumococcal Pneumonia

    Abstract The aging of the world population is expected to be accompanied by increased pneumococcal pneumonia in older adults. To address this, the Community-Acquired Pneumonia immunization Trial in Adults (CAPiTA), a large, randomized, placebo-controlled trial conducted to assess the 13-valent pneumococcal conjugate[…][ncbi.nlm.nih.gov]

  • Aspiration Pneumonia

    We report a case of aspiration admitted to our rehabilitation unit in a patient with dysphagia due to diffuse idiopathic skeletal hyperostosis or Forestier's disease of the cervical spine, in whom an episode of pneumonia had occurred. Clinical and instrumental findings, including radiography of the spine, (CT Scan) and[…][ncbi.nlm.nih.gov]

  • Acute Hyperventilation

    Most commonly, the history is one of sudden onset of dyspnea, chest pain, or neurologic symptoms (eg, dizziness, weakness, paresthesias, or near-syncope) after a stressful[emedicine.medscape.com] Abstract Acute hypocapnia decreases CBF, increases hemoglobin affinity for oxygen and causes cerebral tissue hypoxia.[ncbi.nlm.nih.gov] They will also be taught in a practical way to recognize early clinical signs and symptoms of hypocapnia.[clinicaltrials.gov]

  • Psychogenic Hyperventilation

    Most commonly, the history is of sudden onset of dyspnea, chest pain, or neurologic symptoms (eg, dizziness, weakness, paresthesias, near syncope) following a stressful event[unp.me] […] high lactates are usually associated with acidosis and an increased risk of poor outcome, in patients with psychogenic hyperventilation, high lactates are associated with hypocapnia[ncbi.nlm.nih.gov] The onset is sudden and starts with dyspnea. It is accompanied by giddiness, ringing in ears, severe fatigue, and finger spasms.[mjdrdypu.org]

  • High Altitude Pulmonary Edema

    Renal response to short-term hypocapnia in man. Kidney Int 1975;8:376-84. [ PUBMED ] 21. Hackett PH, Roach RC. High altitude cerebral edema.[lungindia.com]

  • Asthma

    Her attacks are characterized by the relatively sudden onset of dyspnea; they are more frequent in the spring and fall, when they are often preceded by symptoms of rhino-conjunctivitis[doi.org] In the early stages of acute, severe asthma, analysis of arterial blood gases usually reveals mild hypoxemia, hypocapnia and respiratory alkalosis.[ncbi.nlm.nih.gov] In such cases, analysis of blood gases usually reveals severe hypoxemia with arterial oxygen (PaO 2 ) lower than 60 mmHg, hypocapnia and respiratory alkalosis with or without[ncbi.nlm.nih.gov]

  • Idiopathic Pulmonary Hemosiderosis

    A 5-year-old male patient was admitted to our clinic with sudden-onset pallor during iron therapy given for anemia.[ncbi.nlm.nih.gov] While he was being investigated for clinical and laboratory signs mimicking hemolytic anemia, he developed cough and dyspnea.[ncbi.nlm.nih.gov]

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