The nurse assists a patient into which position in preparation for a diagnostic thoracentesis?
Sitting upright with elbows on an over-bed table and feet supported
Sitting in bed with knees slightly flex and feet flexed
Lying flat in the fetal position on the unaffected side
Lying flat on the unaffected side with knees slightly flexed
The Correct Answer is A
A. The optimal position for a thoracentesis is sitting upright with the patient leaning forward slightly, with elbows resting on an over-bed table to help expose the pleural space for access. This position allows gravity to pull the lungs downward and facilitates easier access to the pleural cavity.
B. Sitting in bed with knees slightly flexed and feet flexed is not the best position for thoracentesis. This position might limit the ability to properly expose the thoracic cavity for the procedure.
C. Lying flat in the fetal position on the unaffected side would not allow for effective drainage or access to the pleural space and is not ideal for thoracentesis.
D. Lying flat on the unaffected side with knees slightly flexed is not ideal because it does not provide optimal positioning for the procedure. The upright position is preferred for thoracentesis to facilitate easy access to the pleural space.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Blood glucose levels are not directly affected by desmopressin, as it is used to treat diabetes insipidus, which is related to antidiuretic hormone (ADH) deficiency, not glucose metabolism.
B. A serum sodium level of 146 mEq/L is slightly elevated and may indicate dehydration, which is common in diabetes insipidus if not well controlled. Desmopressin should help lower the sodium level by reducing the excessive urine output.
C. Blood urea nitrogen (BUN) is typically used to assess kidney function and hydration status, but it is not a primary indicator of the effectiveness of desmopressin in treating diabetes insipidus.
D. A urine specific gravity of 1.015 is within the normal range and indicates more concentrated urine, which is a therapeutic effect of desmopressin. The medication helps the kidneys retain water, leading to more concentrated urine, and improving symptoms of diabetes insipidus.
Correct Answer is D
Explanation
A. Insulin detemir is a long-acting basal insulin used for maintenance therapy, not for the rapid reduction of blood glucose levels in acute conditions like diabetic ketoacidosis (DKA).
B. NPH insulin is an intermediate-acting insulin used for long-term blood glucose control, but it is not appropriate for immediate treatment of DKA.
C. Insulin glargine is also a long-acting insulin that works over a prolonged period, making it unsuitable for emergency situations like DKA.
D. Regular insulin is the preferred choice for treating diabetic ketoacidosis. It is a short-acting insulin that can rapidly reduce blood glucose levels and is used intravenously for immediate intervention in DKA.
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