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16 Possible Causes for Dyspnea with Sudden Onset, Hypocapnia, Patient Appears Acutely Ill

  • 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[] Arterial blood gas analysis showed hypoxemia-hypocapnia and D-dimer level was high.[] “In summary, we found that the most reliable indicator of patients with PE is sudden onset dyspnea.[]

  • 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].[]

  • Pneumococcal Pneumonia

    Infected patients typically have an ill or anxious appearance.[] Initially a viral illness is followed by an acute onset of high fever, rigors, productive cough, chest pain, dyspnea, tachypnea, tachycardia, excess perspiration, general[]

  • Aspiration Pneumonia

    Aspiration of leguminous vegetables can cause a granulomatous pneumonitis know as lentil aspiration pneumonia that manifest on radiologic studies with small, poorly defined nodular opacities. We report two cases of lentil aspiration pneumonia that manifested with nodules up to 1.0 cm in diameter on radiographs and CT,[…][]

  • 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[] Abstract Acute hypocapnia decreases CBF, increases hemoglobin affinity for oxygen and causes cerebral tissue hypoxia.[] They will also be taught in a practical way to recognize early clinical signs and symptoms of hypocapnia.[]

  • 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.[]

  • Pneumocystis Carinii Pneumonia

    HIV/AIDS, SLE, organ transplantation, immunosuppressants) sudden onset chest pain and dyspnea suggests pneumothorax Exam tachypnea tachycardia signs of pneumothorax lung exam[] Assessment History Patients with PCP often appear acutely ill and weak.[] A decrease in oxygen saturation as measured by pulse oximetry during exercise suggests PCP, especially in the patient who has minimal symptoms, does not appear acutely ill[]

  • Congestive Heart Failure

    Common risk factors are male gender, older age, presence of atrial fibrillation, and daytime hypocapnia.[] These SRDB cause arousals, hypoxemia-reoxygenation, hypercapnia-hypocapnia, and changes in intrathoracic pressure.[] […] time, which impair the normal buffering of Paco 2 and hydrogen ions and delay the detection of changes in Paco 2 during sleep; and rostral fluid shifts that predispose to hypocapnia[]

  • Fat Embolism

    Onset is sudden. Presenting symptoms are myriad and include tachypnea, dyspnea and tachycardia.[] Laboratory studies Arterial blood gas findings often demonstrate hypoxia, PaO2 60 mmHg, and hypocapnia Hematologic studies may show non-specific findings such as thrombocytopenia[] Tachypnea, dyspnea, and hypoxia appear as a result of ventilation-perfusion abnormalities 12-72 hours after injury.[]

  • Amniotic Fluid Embolism

    The common clinical presentation is sudden onset of dyspnea, hypotension inappropriate to the volume of blood loss, and hypoxia, followed by cardiopulmonary arrest.[] Hypocapnia caused a lower Apgar score and delayed neonatal breathing.[] Most common findings include sudden onset of dyspnea, acute respiratory distress, marked hypotension, hypoxia, cyanosis and coagulopathy.[]