biography   email   home   
University of San Francisco
Site Map

Basic Questions
Normal Values
Etiology and Clinical Manifestations
Step 1
Step 2
Step 3
Case Studies
Case Study 1
Case Study 2
Case Study 3 <<
Case Study 4
Case Study 5
Case Study 6
Case Study 7
Case Study 8
Case Study 9
Quick Reference

    Metabolic Acidosis
    Clinical Manifestations
    • hyperkalemia: shift of acid to ICF and K+ to the ECF
    • anorexia, nausea, and vomiting
    • warm, flushed skin
    • cardiac dysrhythmias & CNS dysfunction
    • headache, diarrhea, tremors

    Metabolic Alkalosis
    Clinical Manifestations
    • cardia dysrhythmias; seizures; confusion; muscle twitching, agitation
    • >pH;>HC03; normal PaCo2 or elevated if compensation occurs

    Respiratory Acidosis
    Clinical Manifestations
    • > PaCo2; HCO3 is normal or > with renal compensation
    • vasodilatation; cardiac dysrhythmias, tachycardia, somnolence, decreased ventilation

    Respiratory Alkalosis
    Clinical Manifestations
    • > pH; < PaC02; HCO3 normal or low due to compensation
    • nausea, vomiting, tingling of fingers
  ABG Tutorial  Med-Calc Tutorial  Current Courses  Links  FAQs 

Case Studies :: Case Study 3

    A client, 5 days post-abdominal surgery, has a nasogastric tube. The nurse notes that the nasogastric tube (NGT) is draining a large amount (900 cc in 2hours) of coffee ground secretions. The client is not oriented to person, place, or time. The nurse contacts the attending physician and STAT ABGs are ordered.

    The results from the ABGs come back from the laboratory and show:

      pH = 7.52
      Pa C02 = 35 mmHg
      HC03 = 29 mEq/L

    Once you have interpreted the ABG results, click on one of the following links

    Next Page