The nurse obtains the following arterial blood gas results on a client: pH 7.2, PaO2 88 mmHg, PaCO2 40 mmHg, HCO3 19 mEq/L. Which acid-base imbalance is the client experiencing?
Respiratory alkalosis
Metabolic alkalosis
Respiratory acidosis
Metabolic acidosis
The Correct Answer is D
Choice A reason: Respiratory alkalosis is not the correct answer. Respiratory alkalosis is a condition where the blood pH is high (above 7.45) due to low carbon dioxide levels (below 35 mmHg) caused by hyperventilation. The client's blood pH is low (7.2) and the carbon dioxide level is normal (40 mmHg), which does not indicate respiratory alkalosis.
Choice B reason: Metabolic alkalosis is not the correct answer. Metabolic alkalosis is a condition where the blood pH is high (above 7.45) due to high bicarbonate levels (above 26 mEq/L) caused by excessive loss of acids or intake of alkali. The client's blood pH is low (7.2) and the bicarbonate level is low (19 mEq/L), which does not indicate metabolic alkalosis.
Choice C reason: Respiratory acidosis is not the correct answer. Respiratory acidosis is a condition where the blood pH is low (below 7.35) due to high carbon dioxide levels (above 45 mmHg) caused by hypoventilation. The client's blood pH is low (7.2) but the carbon dioxide level is normal (40 mmHg), which does not indicate respiratory acidosis.
Choice D reason: This is the correct answer. Metabolic acidosis is a condition where the blood pH is low (below 7.35) due to low bicarbonate levels (below 22 mEq/L) caused by excessive production or intake of acids or loss of alkali. The client's blood pH is low (7.2) and the bicarbonate level is low (19 mEq/L), which indicates metabolic acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Cucumbers are not a good source of iron for the client with iron-deficiency anemia. Iron-deficiency anemia is a condition where the body does not have enough iron to produce hemoglobin, the protein that carries oxygen in the red blood cells. Cucumbers are mostly water and have very little iron content. The client should eat foods that are rich in iron, such as meat, poultry, fish, eggs, beans, and leafy green vegetables.
Choice B reason: Bran is not a good source of iron for the client with iron-deficiency anemia. Bran is the outer layer of cereal grains that contains fiber and some minerals, but not much iron. Bran can also interfere with the absorption of iron from other foods by binding to it and preventing it from entering the bloodstream. The client should avoid eating bran or other foods that contain phytates, oxalates, or tannins, which can reduce the bioavailability of iron.
Choice C reason: Celery is not a good source of iron for the client with iron-deficiency anemia. Celery is a low-calorie vegetable that has some vitamins and minerals, but very little iron. Celery also has a high water content and can fill up the stomach without providing much nutrition. The client should eat foods that are high in iron, such as meat, poultry, fish, eggs, beans, and leafy green vegetables.
Choice D reason: This is the correct answer. Spinach is a good source of iron for the client with iron-deficiency anemia. Spinach is a leafy green vegetable that has a high iron content and can help increase the hemoglobin level and the oxygen-carrying capacity of the blood. Spinach also has other nutrients, such as vitamin C, folate, and antioxidants, that can benefit the health of the client. The client should eat spinach and other foods that are high in iron, such as meat, poultry, fish, eggs, beans, and leafy green vegetables.
Correct Answer is D
Explanation
Choice A reason: This is not a correct interpretation. An occlusion of the right coronary artery is a blockage of the blood flow to the right side of the heart, which can cause a heart attack or ischemia. This condition does not produce a systolic murmur, but rather chest pain, shortness of breath, sweating, or nausea. A systolic murmur is a sound that occurs during the contraction of the heart, when the blood flows through a narrowed or leaky valve.
Choice B reason: This is not a correct interpretation. An aneurysm of the descending aorta is a bulging or weakening of the wall of the large artery that carries blood from the heart to the lower body. This condition does not produce a systolic murmur, but rather a pulsating mass in the abdomen, back pain, or abdominal pain. A systolic murmur is a sound that occurs during the contraction of the heart, when the blood flows through a narrowed or leaky valve.
Choice C reason: This is not a correct interpretation. Decreased fluid in the pericardial sac is a condition where the amount of fluid that surrounds and cushions the heart is reduced. This can be caused by dehydration, infection, or inflammation. This condition does not produce a systolic murmur, but rather a pericardial friction rub, which is a scratching or grating sound that occurs when the layers of the pericardium rub against each other. A systolic murmur is a sound that occurs during the contraction of the heart, when the blood flows through a narrowed or leaky valve.
Choice D reason: This is the correct interpretation. Distortion of one or more heart valves is a condition where the shape or function of the valves that regulate the blood flow through the heart is altered. This can be caused by congenital defects, rheumatic fever, endocarditis, or aging. This condition can produce a systolic murmur, which is a sound that occurs during the contraction of the heart, when the blood flows through a narrowed or leaky valve. The location and the intensity of the murmur can help identify which valve is affected. A systolic murmur in the second intercostal space to the right of the sternum can indicate a problem with the aortic valve.
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