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Bun In Dka

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Lab Test

Measurement of serum or plasma blood urea nitrogen (BUN) for the evaluation and management of volume status and renal disorders. It is performed on patients undergoing routine laboratory testing and is usually performed as part of a multiphasic automated testing process. Adults: 10-20 mg/dL (3.6-7.1 mmol/L) Elderly: may be slightly higher than adult Children: 5-18 mg/dL (1.8-6.4 mmol/L) Infant: 5-18 mg/dL Newborn: 3-12 mg/dL Cord: 21-40 mg/dL Critical Values: >100 mg/dL (indicates serious impairment of renal function) Adrenal insufficiency - moderate elevations in BUN levels are consistent with both acute and chronic adrenal insufficiency. The increased Bun is largely due to dehydration secondary to aldosterone deficiency, which leads to excretion of sodium in excess of intake and results in azotemia. Patients with secondary adrenal insufficiency are less affected because of intact aldosterone secretion. Elevation is usually reversible with restoration of normal renal hemodynamics and circulating blood volume. Community-acquired pneumonia - In one study, an elevated BUN, along with increased respiratory rate and decreased diastolic blood pressure, was predictive of mortality in pat Continue reading >>

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Popular Questions

  1. Asystole RN

    yes! very astute observation.
    to understand the relationship one must understand hyperglycemia. first answer the question, what pathophysiology occurs with hyperglycemia? there are key s&s the nurse is looking for when attempting to assess for hyperglycemia, there lays a clue to the connection.
    then answer, what can cause the blood urea nitrogen level to be elevated?
    hint.
    "what is hyperglycemia?
    hyperglycemia (hi"per-gli-se'me-ah) is an increase in plasma glucose (blood sugar). it can turn into a complex medical condition -- diabetic ketoacidosis (ke"to-as"id-o'sis) and coma -- if it's not treated on time and adequately. hyperglycemia is usually the first sign of diabetes mellitus. symptoms of hyperglycemia are
    polyuria (pol"e-yur'e-ah) (excess urine)
    polydipsia (pol"e-dip'se-ah) (thirst)

    polyphagia (pol"e-fa'je-ah) (excessive hunger) "
    the american heart association, (2011). hyperglycemia and hypoglycemia. retrieved from http://www.americanheart.org/presenter.jhtml?identifier=4593

  2. illuminati88

    Hi,
    Look into what physiological processes occur in hyperglycemia, what the body resorts to when glucose is not available for energy, and by products of amino acid breakdown. That should help you on the path

  3. ladyangel341

    Since we know why blood glucose elevated lets go to BUN...
    There are 3 reasons of elevation of the BUN
    1) renal impairment
    2) pregnancy
    3) excessive breakdown of protein (called catabolism)
    On that three the closest relation to increase glucose is the breakdown of protein...
    Why there's a breakdown of protein if there is an increase number of blood glucose?
    We are talking about diabetic patient which there is a decrease production of insulin. Insulin helps absorption of glucose into the cells. Lack of insulin makes the glucose remain in the blood stream and some excreted through urination.
    So what will the body use for energy if there is no glucose?
    That's where protein or fat breakdown happens. The proteins breakdown makes the BUN elevated which urea is the byproduct of protein breakdown.
    Hope I helped^^:heartbeat

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