A patient with chronic obstructive pulmonary disease (COPD) has the following arterial blood gas (ABG) results: a blood pH of 7.29, a partial pressure of carbon dioxide (PaCO2) level of 49 mm Hg, and a bicarbonate ion (HCO3) level of 25 mEq/L. Which condition would the nurse have in mind when developing the patient's plan of care?
Metabolic acidosis.
Metabolic alkalosis.
Respiratory acidosis.
Respiratory alkalosis.
The Correct Answer is C
Choice A rationale:
Metabolic acidosis is characterized by low blood pH and low bicarbonate ion levels. In this case, the patient has a high bicarbonate ion level (25 mEq/L), indicating a compensatory response to respiratory acidosis. Metabolic alkalosis, on the other hand, would present with high pH and high bicarbonate ion levels.
Choice B rationale:
Metabolic alkalosis is characterized by high blood pH and high bicarbonate ion levels. The patient's bicarbonate ion level (25 mEq/L) is within the normal range, and the low pH and high PaCO2 (49 mm Hg) indicate respiratory acidosis, not metabolic alkalosis.
Choice C rationale:
Respiratory acidosis is characterized by low blood pH and high partial pressure of carbon dioxide (PaCO2) levels. In this case, the patient has a low pH (7.29) and elevated PaCO2 (49 mm Hg), indicating respiratory acidosis. The elevated bicarbonate ion level (25 mEq/L) is a compensatory response. Respiratory alkalosis would present with high pH and low PaCO2 levels.
Choice D rationale:
Respiratory alkalosis is characterized by high blood pH and low PaCO2 levels. The patient's PaCO2 level is elevated (49 mm Hg), indicating respiratory acidosis, not alkalosis. The low pH (7.29) further supports the diagnosis of respiratory acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A rationale:
Increased bilirubin levels can occur in thalassemia major due to the destruction of red blood cells, leading to elevated bilirubin, which is a breakdown product of hemoglobin. This elevation can contribute to jaundice and other symptoms.
Choice B rationale:
Thalassemia major leads to the destruction of red blood cells, causing the bone marrow to release more reticulocytes (immature red blood cells) into the bloodstream. Therefore, an increased reticulocyte level is expected in thalassemia major.
Choice C rationale:
Increased mean corpuscular volume (MCV) is not a typical finding in thalassemia major. Thalassemia major is characterized by microcytic (smaller than normal) red blood cells, leading to a decreased MCV.
Choice D rationale:
Thalassemia major causes increased iron absorption by the intestines, leading to elevated total iron-binding capacity (TIBC) TIBC measures the body's capacity to bind and transport iron in the blood, and elevated levels are seen in conditions with increased iron demand, such as thalassemia major.
Correct Answer is D
Explanation
Choice A rationale:
Taking a daily walk is a beneficial activity for patients with venous leg ulcers. Walking promotes blood circulation, which can aid in wound healing. This statement indicates that the patient understands the importance of physical activity for their condition.
Choice B rationale:
Trying to lose weight is another positive step for a patient with venous leg ulcers, especially if the patient is overweight. Excess body weight can put additional pressure on the veins in the legs, worsening venous insufficiency. Losing weight can alleviate this pressure and improve venous circulation, supporting the healing process of leg ulcers.
Choice C rationale:
Wearing stockings after getting out of bed is a proper technique for managing venous leg ulcers. Compression stockings help improve blood flow in the legs and reduce swelling, which is beneficial for patients with venous insufficiency and leg ulcers. This statement indicates that the patient understands the importance of wearing compression stockings consistently.
Choice D rationale:
Not wearing knee-high socks that are tight around the calf is essential advice for patients with venous leg ulcers. Tight clothing, including socks or stockings, can impede blood circulation in the legs, worsening venous insufficiency and delaying wound healing. This statement indicates the need for further education because the patient should avoid any tight clothing around the affected area to promote optimal blood flow and wound healing.
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