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What Lab Values Indicate 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. TheCommuter

    You can post this question on this site's Nursing Student Assistance Forums and perhaps get an answer. One of our frequent users, Daytonite, loves to give detailed answers to these types of questions.
    http://allnurses.com/forums/f205/

  2. ICRN2008

    Here is the formula for anion gap:
    Agap = Na + K - Cl -CO2
    I would think that the doctor would be monitoring the glucose level (not the agap) to determine when to stop the insulin drip. Anyone else have an idea?

  3. P_RN

    One of our wonderful members Mark Hammerschmidt has a great FREE MICU site:
    http://www.icufaqs.org/
    Check section 4.2
    It's all acidosis/alkalosis

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