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Respiratory Acidosis Symptoms

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Respiratory Acidosis

(Video) Overview of Acid-Base Maps and Compensatory Mechanisms By James L. Lewis, III, MD, Attending Physician, Brookwood Baptist Health and Saint Vincents Ascension Health, Birmingham Respiratory acidosis is primary increase in carbon dioxide partial pressure (Pco2) with or without compensatory increase in bicarbonate (HCO3); pH is usually low but may be near normal. Cause is a decrease in respiratory rate and/or volume (hypoventilation), typically due to CNS, pulmonary, or iatrogenic conditions. Respiratory acidosis can be acute or chronic; the chronic form is asymptomatic, but the acute, or worsening, form causes headache, confusion, and drowsiness. Signs include tremor, myoclonic jerks, and asterixis. Diagnosis is clinical and with ABG and serum electrolyte measurements. The cause is treated; oxygen (O2) and mechanical ventilation are often required. Respiratory acidosis is carbon dioxide (CO2) accumulation (hypercapnia) due to a decrease in respiratory rate and/or respiratory volume (hypoventilation). Causes of hypoventilation (discussed under Ventilatory Failure ) include Conditions that impair CNS respiratory drive Conditions that impair neuromuscular transmission and other Continue reading >>

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  1. TSHELTON2005

    you will find some information and links in this thread:
    http://allnurses.com/forums/f205/pat...es-145201.html - pathophysiology/a & p/fluid & electrolyte resources (in nursing student assistant forum)
    respiratory acidosis: big symptom to remember is the patients have a lot of trouble breathing because of pulmonary congestion, but note the symptoms of the breathing compared to the breathing symptoms of respiratory alkalosis. you'll hear them say things like, "i can't catch my breath." you see this when there has been chest trauma, airway obstruction, pulmonary edema, drug overdose, neuromuscular diseases and in copd. the basic pathophysiology of this is that the patient is not clearing carbon dioxide from their body. hypoventilation (reduced rate and depth of breathing) causes an increase in carbon dioxide throughout the cells and tissues of the body. the hypoventilation results in pulmonary congestion and airway obstruction which leads to all the breathing difficulties.
    symptoms are:
    ph below 7.35 and pco2 over 45mmhg
    rapid, shallow respirations
    hypoventilation
    dyspnea
    elevated blood pressure
    headache
    hyperkalemia
    disorientation
    elevated cardiac output
    muscle weakness

    hypoxia
    respiratory alkalosis: hyperventilation, rapid rate of breathing, causes too much carbon dioxide to be exhaled and the ph of the body rises. the cardinal sign of respiratory alkalosis is the deep, rapid breathing, more than 40 breaths per minute, that is similar to kussmaul's respirations (seen in metabolic acidosis). this kind of breathing leads to neuromuscular and central nervous system disturbances. this will occur in pulmonary diseases such as asthma, as well as in pregnancy, fever, at high altitudes and with acute anxiety. think of the things that would cause a person to breathe very rapidly and cause large losses of carbon dioxide.
    symptoms are:
    ph elevated above 7.45 and pco2 below 35mmhg
    rapid, deep breathing
    hyperventilation
    agitation
    paresthesias
    seizures
    confusion
    hypokalemia
    lightheadedness
    dizziness

    tingling of the extremitieshope this helps.

  2. TexasTac

    the rome mnemonic has always been helpful to me:
    r respiratory
    o opposite
    ph up pco2 down = alkalosis
    ph down pco2 up = acidosis
    m metabolic
    e equal
    ph up hco2 up = alkalosis
    ph down hcos down = acidosis

  3. Beech1184

    The main thing to remember is that the lungs are the major way we dispose of acid products of metabolism in the form of CO2 and water vapor or CO3. 13,000 meq of acid are excreted versus 50 meq for the kidneys in 24 hrs. Anything that causes hypoventilation will thus cause acidosis. It can be life threatening especially in the very young and the old.
    Respratory alkalosis is usually self limiting and much less common. The most common cause is hysteria.

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