A nurse is reviewing a client's laboratory report. The client's ABG levels are pH 7.5, PaCO2 32 mm Hg, and HCO3 24 mEq/L. The nurse should determine that the client has which of the following acid-base imbalances?
Respiratory alkalosis
Metabolic acidosis
Respiratory acidosis
Metabolic alkalosis
The Correct Answer is A
Choice A reason: This is the correct imbalance, because respiratory alkalosis is a condition that occurs when the blood pH is high, the PaCO2 is low, and the HCO3 is normal or low. Respiratory alkalosis is caused by hyperventilation, which can result from anxiety, fever, pain, or mechanical ventilation.
Choice B reason: This is an incorrect imbalance, because metabolic acidosis is a condition that occurs when the blood pH is low, the PaCO2 is normal or low, and the HCO3 is low. Metabolic acidosis is caused by the accumulation of acids in the blood, which can result from diabetic ketoacidosis, renal failure, or lactic acidosis.
Choice C reason: This is an incorrect imbalance, because respiratory acidosis is a condition that occurs when the blood pH is low, the PaCO2 is high, and the HCO3 is normal or high. Respiratory acidosis is caused by hypoventilation, which can result from airway obstruction, chest injury, or narcotic overdose.
Choice D reason: This is an incorrect imbalance, because metabolic alkalosis is a condition that occurs when the blood pH is high, the PaCO2 is normal or high, and the HCO3 is high. Metabolic alkalosis is caused by the loss of acids from the blood, which can result from vomiting, gastric suction, or diuretic therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: This is the best action, because compression stockings can help improve the blood flow and prevent the formation of new clots in the veins of the legs. Compression stockings can also reduce the swelling, pain, and inflammation caused by thrombophlebitis.
Choice B reason: This is an incorrect action, because cold compresses can cause vasoconstriction and worsen the blood flow and the clotting process in the affected vein. Cold compresses can also increase the discomfort and numbness of the extremity.
Choice C reason: This is an incorrect and dangerous action, because gently massaging the area can dislodge the clot and cause it to travel to the lungs, heart, or brain, resulting in a life-threatening complication, such as pulmonary embolism, myocardial infarction, or stroke.
Choice D reason: This is an incorrect and misleading statement, because heparin is not prescribed to dissolve the thrombus, but to prevent the growth and extension of the existing clot and the formation of new clots. Heparin is an anticoagulant that inhibits the clotting factors in the blood, but does not break down the clot. The body's own enzymes, such as plasmin, are responsible for dissolving the clot.
Correct Answer is D
Explanation
Choice A reason: This is an important action, but not the first one. The nurse should first address the client's comfort and inflammation before teaching them how to use the eye drops.
Choice B reason:Option B (warm compresses)is a key intervention for blepharitis to improve meibomian gland function and reduce crusting. However, assessment (Option D) must precede treatment to ensure no contraindications (e.g., corneal abrasion) and tailor care appropriately.
Choice C reason: This is a helpful action, but not the first one. The nurse should first apply warm compresses to the affected eye, and then dim the lights to reduce the sensitivity and pain.
Choice D reason:Thefirst stepin the nursing process isassessment. Even with a diagnosis of blepharitis, the nurse mustinspect the eyesto evaluate the current severity, presence of drainage (e.g., purulent vs. serous), redness, or signs of secondary infection (e.g., bacterial involvement). This informs subsequent interventions.
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