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  2. Right axis deviation - Wikipedia

    en.wikipedia.org/wiki/Right_axis_deviation

    The apex of the heart is normally orientated towards the left. A more vertical orientation of the heart, shifts the axis to the right. Physiologically, this can occur in tall and thin individuals. [16] Pathologically, conditions such as a left-sided pneumothorax and lung hyperinflation (e.g. COPD) [17] can

  3. Reactive airway disease - Wikipedia

    en.wikipedia.org/wiki/Reactive_airway_disease

    Reactive airway disease (RAD) is an informal label that physicians apply to patients with symptoms similar to those of asthma. [1] An exact definition of the condition does not exist. [ 1 ] [ 2 ] Individuals who are typically labeled as having RAD generally have a history of wheezing, coughing, dyspnea , and production of sputum that may or may ...

  4. Heart failure - Wikipedia

    en.wikipedia.org/wiki/Heart_failure

    Right heart failure was thought to compromise blood flow to the lungs compared to left heart failure compromising blood flow to the aorta and consequently to the brain and the remainder of the body's systemic circulation. However, mixed presentations are common, and left heart failure is a common cause of right heart failure. [59]

  5. Chronic obstructive pulmonary disease - Wikipedia

    en.wikipedia.org/wiki/Chronic_obstructive...

    Chronic obstructive pulmonary disease (COPD) is a type of progressive lung disease characterized by chronic respiratory symptoms and airflow limitation. [8] GOLD 2024 defined COPD as a heterogeneous lung condition characterized by chronic respiratory symptoms (dyspnea or shortness of breath, cough, sputum production or exacerbations) due to abnormalities of the airways (bronchitis ...

  6. Left axis deviation - Wikipedia

    en.wikipedia.org/wiki/Left_axis_deviation

    The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane.. In electrocardiography, left axis deviation (LAD) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between −30° and −90°.

  7. Acute respiratory distress syndrome - Wikipedia

    en.wikipedia.org/wiki/Acute_respiratory_distress...

    respiratory failure not explained by heart failure or volume overload; decreased Pa O 2 /Fi O 2 ratio (a decreased Pa O 2 /Fi O 2 ratio indicates reduced arterial oxygenation from the available inhaled gas): mild ARDS: 201 – 300 mmHg (≤ 39.9 kPa) moderate ARDS: 101 – 200 mmHg (≤ 26.6 kPa) severe ARDS: ≤ 100 mmHg (≤ 13.3 kPa)

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