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  2. Orthostatic hypotension - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_hypotension

    Orthostatic hypotension can be confirmed by measuring a person's blood pressure after lying flat for 5 minutes, then 1 minute after standing, and 3 minutes after standing. [29] Orthostatic hypotension is defined as a fall in systolic blood pressure of at least 20 mmHg or the diastolic blood pressure of at least 10 mmHg between the supine ...

  3. Orthopnea - Wikipedia

    en.wikipedia.org/wiki/Orthopnea

    Orthopnea or orthopnoea [1] is shortness of breath (dyspnea) that occurs when lying flat, [2] causing the person to have to sleep propped up in bed or sitting in a chair. It is commonly seen as a late manifestation of heart failure, resulting from fluid redistribution into the central circulation, causing an increase in pulmonary capillary pressure and causing difficulty in breathing.

  4. Respiratory arrest - Wikipedia

    en.wikipedia.org/wiki/Respiratory_arrest

    If the patient does not breathe enough, then the volume-cycled ventilation will initiate a breath for the patient to bring up the breathing rate to the minimum respiratory rate. The synchronized intermittent mandatory ventilation (SIMV) is a similar method of mechanical ventilation that also delivers breaths at a fixed rate and volume that ...

  5. Orthostatic intolerance - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_intolerance

    Orthostatic intolerance (OI) is the development of symptoms when standing upright that are relieved when reclining. [1] There are many types of orthostatic intolerance. OI can be a subcategory of dysautonomia, a disorder of the autonomic nervous system [2] occurring when an individual stands up. [3]

  6. Signs and symptoms of pregnancy - Wikipedia

    en.wikipedia.org/.../Signs_and_symptoms_of_pregnancy

    The exact cause of morning sickness remains unknown. Nausea and vomiting in pregnancy is typically mild and self-limited, resolving on its own by the 14th week of pregnancy. Other causes should also be ruled out when considering treatment. Initial treatment is typically conservative, and may include changes to diet and emotional support.

  7. Positional asphyxia - Wikipedia

    en.wikipedia.org/wiki/Positional_asphyxia

    The knee-on-stomach position compresses the chest, making it difficult for the person on the bottom to breathe. Positional asphyxia, also known as postural asphyxia, is a form of asphyxia which occurs when someone's position prevents the person from breathing adequately. People may die from positional asphyxia accidentally, when the mouth and ...

  8. Maternal physiological changes in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Maternal_physiological...

    Hypercoagulability in pregnancy likely evolved to protect women from hemorrhage at the time of miscarriage or childbirth. In developing countries, the leading cause of maternal death is still hemorrhage. [25] In the United States 2011-2013, hemorrhage made up of 11.4% and pulmonary embolisms made up of 9.2% of all pregnancy-related deaths. [26]

  9. Shortness of breath - Wikipedia

    en.wikipedia.org/wiki/Shortness_of_breath

    Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing the intensity of its distinct ...

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