Mrs. Jamerson, who is in the post anesthesia care unit (PACU) following surgery, is difficult to arouse and demonstrates shallow breathing. The patient does not respond to any stimuli. The nurse assesses the patient and obtains arterial blood gas (ABG) measurements STAT. The ABG shows a pH of 7.10, PaCO2 of 70 mm Hg, and HCO3 of 24 mEq/L. What does this mean?
Respiratory Alkalosis Partially Compensated
Respiratory Acidosis Uncompensated
Metabolic Alkalosis Partially Compensated
Metabolic Acidosis Uncompensated
The Correct Answer is B
Choice A reason: Respiratory Alkalosis Partially Compensated is characterized by an elevated pH over 7.45 and a PaCO2 under 35 mmHg, with a compensatory acidic HCO3 under 22 mEq/L. This does not match the patient's ABG results.
Choice B reason: Respiratory Acidosis Uncompensated is indicated by an acidic pH under 7.35 and an elevated PaCO2 over 45 mmHg, with HCO3 in the normal range of 2226 mEq/L. The patient's ABG results show a low pH and high PaCO2, which aligns with this condition.
Choice C reason: Metabolic Alkalosis Partially Compensated would show a basic pH over 7.45 and a basic HCO3 over 26 mEq/L, with a compensatory acidic PaCO2 over 45 mmHg[^10^]. The patient's ABG values do not support this diagnosis.
Choice D reason: Metabolic Acidosis Uncompensated would present with an acidic pH under 7.35 and an acidic HCO3 under 22 mEq/L, with PaCO2 in the normal range of 3545 mmHg⁸. The patient's normal HCO3 level does not indicate metabolic acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Applying a tourniquet just below the elbow is not recommended as the first line of action for a deep laceration unless there is life-threatening hemorrhaging that cannot be controlled by direct pressure. Tourniquets are used as a last resort because they can cause tissue damage.
Choice B reason: Elevating the limb and applying ice can help reduce bleeding and swelling. Elevation uses gravity to help reduce blood flow to the injury, and the cold from the ice constricts blood vessels, further helping to control bleeding and reduce swelling.
Choice C reason: Cleaning the wound is important, but it should not be the first action taken. The initial focus should be on stopping the bleeding. Once bleeding is controlled, the wound can be cleaned to prevent infection.
Choice D reason: Applying pressure directly to the wound with a clean cloth or bandage is the first step in controlling bleeding. However, the question specifies applying pressure above the wound, which would not be effective in controlling bleeding from the wound itself.
Correct Answer is A
Explanation
Choice A reason: Immunoglobulin E (IgE) is associated with allergic reactions. A RAST test measures the level of allergen specific IgE antibodies in the blood. An elevation in IgE indicates sensitization to a particular allergen and a positive result for the allergy.
Choice B reason: Immunoglobulin M (IgM) is usually the first antibody produced by the immune system when it detects an infection. It is not typically associated with the detection of allergies.
Choice C reason: Immunoglobulin A (IgA) plays a critical role in mucosal immunity and is found in high concentrations in the mucous membranes, particularly those lining the respiratory passages and the gastrointestinal tract, but it is not used as an indicator in RAST testing for allergies.
Choice D reason: Immunoglobulin G (IgG) is the most abundant type of antibody and is involved in the recognition and removal of pathogens. It is not specific to allergic response detection in RAST testing.
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