Results Analysis
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Question 1 of 5.
The home care nurse is preparing to visit a client diagnosed with Ménière's disease. The nurse reviews the primary health care provider prescriptions and expects to educate the client on which dietary measure?
A. A low-fiber diet with decreased fluids
B. A low-sodium diet and fluid restriction
C. A low-fat diet with a restriction of citrus fruits
D. A low-carbohydrate diet and the elimination of red meats
Explanation: Dietary changes such as salt and fluid restrictions that reduce the amount of endolymphatic fluid are sometimes prescribed for clients with Ménière's disease. None of the remaining options are prescribed for this disorder.
Question 2 of 5.
A client had arterial blood gases drawn. The results are a pH of 7.34, a partial pressure of carbon dioxide of 37 mm Hg (37 mm Hg), a partial pressure of oxygen of 79 mm Hg (79 mm Hg), and a bicarbonate level of 19 mEq/L (19 mmol/L). Which disorder should the nurse interpret that the client is experiencing?
A. Metabolic acidosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Respiratory alkalosis
Explanation: Metabolic acidosis occurs when the pH falls to less than 7.35 and the bicarbonate level falls to less than 22 mEq/L (22 mmol/L). With metabolic alkalosis, the pH rises to more than 7.45 and the bicarbonate level rises to more than 27 mEq/L (27 mmol/L). With respiratory acidosis, the pH drops to less than 7.35 and the carbon dioxide level rises to more than 45 mm Hg. With respiratory alkalosis, the pH rises to more than 7.45 and the carbon dioxide level falls to less than 35 mm Hg.
Question 3 of 5.
The nurse caring for a child diagnosed with kidney disease is analyzing the child's laboratory results and notes a sodium level of 148 mEq/L (148 mmol/L). On the basis of this finding, which clinical manifestation should the nurse expect to note in the child?
A. Lethargy
B. Diaphoresis
C. Cold, wet skin
D. Dry, sticky mucous membranes
Explanation: Hypernatremia occurs when the sodium level is more than 145 mEq/L (145 mmol/L). Clinical manifestations include intense thirst, oliguria, agitation, restlessness, flushed skin, peripheral and pulmonary edema, dry and sticky mucous membranes, nausea, and vomiting. None of the remaining options are associated with the clinical manifestations of hypernatremia.
Question 4 of 5.
The nurse is caring for an infant admitted to the hospital with a diagnosis of hemolytic disease. Which finding should the nurse expect to note in this infant when reviewing the laboratory results?
A. Decreased bilirubin count
B. Elevated blood glucose level
C. Decreased red blood cell count
D. Decreased white blood cell count
Explanation: The two primary pathophysiological alterations associated with hemolytic disease are anemia and hyperbilirubinemia. The red blood cell count is decreased because red blood cell production cannot keep pace with red blood cell destruction. Hyperbilirubinemia results from the red blood cell destruction that accompanies this disorder and from the normally decreased ability of the neonate's liver to conjugate and excrete bilirubin efficiently from the body. Hypoglycemia is associated with hypertrophy of the pancreatic islet cells and increased levels of insulin. The white blood cell count is not related to this disorder.
Question 5 of 5.
Intravenous immune globulin (IVIG) therapy is prescribed for a child diagnosed with idiopathic thrombocytopenic purpura (ITP). What are the expected results of this medication?
A. Urine positive for glucose and negative for protein
B. Urine specific gravity of 1.020 and negative for red blood cells
C. White blood cell count 18,000 mm^3 (18 × 10^9/L) and platelets 355,000 mm^3 (355 × 10^9/L)
D. Blood urea nitrogen (BUN) 22 mg/dL (7.92 mmol/L) and creatinine levels of 2.1 mg/dL (185 mcmol/L)
Explanation: IVIG is usually effective to rapidly increase the platelet count. It is thought to act by interfering with the attachment of antibody-coded platelets to receptors on the macrophage cells of the reticuloendothelial system. Corticosteroids may be prescribed to enhance vascular stability and decrease the production of antiplatelet antibodies. Based on this information, the remaining options are unrelated to the administration of this medication.
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