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A child was diagnosed with acute poststreptococcal glomerulonephritis and renal insufficiency. Which laboratory result should the nurse expect to note in the child?
- 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)
Correct Answer: D
Rationale: With poststreptococcal glomerulonephritis, a urinalysis will reveal hematuria with red cell casts. Proteinuria is also present. If renal insufficiency is severe, the BUN and creatinine levels will be elevated. The WBC is usually within normal limits, and mild anemia is common. Platelets would be lower, whereas glucose is not related.
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The nurse is caring for a client who has been diagnosed with tuberculosis. The client is receiving 600 mg of oral rifampin daily. Which laboratory finding would indicate to the nurse that the client is experiencing an adverse effect?
- A. A sedimentation rate of 15 mm/hour
- B. A white blood cell count of 6000 mm^3 (6 × 10^9/L)
- C. A total bilirubin level of 0.3 mg/dL (5.1 mcmol/L)
- D. Alanine aminotransferase (ALT) of 80 U/L (80 U/L)
Correct Answer: D
Rationale: Adverse or toxic effects of rifampin include hepatotoxicity, hepatitis, jaundice, blood dyscrasias, Stevens-Johnson syndrome, and antibiotic-related colitis. The nurse monitors for increased liver function, bilirubin, blood urea nitrogen, and uric acid levels because elevations indicate an adverse effect. The normal ALT level is 4 to 36 U/L (4 to 36 U/L). The normal total bilirubin level is 0.3 to 1.0 mg/dL (5.1 to 17 mcmol/L). The normal sedimentation rate is 0 to 30 mm/hour. A normal white blood cell count is 5000 to 10,000 mm^3 (5 to 10 × 10^9/L).
The nurse is assigned to care for a child diagnosed with juvenile idiopathic arthritis (JIA). What is the child's priority problem?
- A. Acute pain
- B. Potential difficulty with everyday tasks
- C. Impaired mobility causing potential injury
- D. Negative view of body because of activity intolerance
Correct Answer: A
Rationale: All of the problems identified in the options are appropriate for the child with JIA; however, acute pain must be managed before other problems can be addressed.
A child diagnosed with seizures is being treated with carbamazepine. The nurse reviews the laboratory report for the results of the drug plasma level and determines that the plasma level is in a therapeutic range if which is noted?
- A. 1 mcg/mL (4.2 mcmol/L)
- B. 10 mcg/mL (42.3 mcmol/L)
- C. 18 mcg/mL (76.1 mcmol/L)
- D. 20 mcg/mL (84.6 mcmol/L)
Correct Answer: B
Rationale: When carbamazepine is administered, plasma levels of the medication need to be monitored periodically to check for the child's absorption of the medication. The amount of the medication prescribed is based on the results of this laboratory test. The therapeutic plasma level of carbamazepine is 5 to 12 mcg/mL (21.16 to 50.80 mcmol/L). Option 1 indicates a low level that possibly necessitates an increased medication dose. Options 3 and 4 identify elevated levels that indicate the need to decrease the medication dose.
The nurse is reviewing the laboratory analysis of cerebrospinal fluid (CSF) obtained during a lumbar puncture from a child who is suspected of having bacterial meningitis. Which result would most likely confirm this diagnosis?
- A. Clear CSF with low protein and low glucose
- B. Cloudy CSF with low protein and low glucose
- C. Cloudy CSF with high protein and low glucose
- D. Decreased pressure and cloudy CSF with high protein
Correct Answer: C
Rationale: A diagnosis of meningitis is made by testing CSF obtained by lumbar puncture. In the case of bacterial meningitis, findings usually include increased pressure and cloudy CSF with high protein and low glucose. Therefore, options 1, 2, and 4 are incorrect.
A client diagnosed with a thrombotic stroke experiences periods of emotional lability. What should the nurse interpret this behavior as indicating?
- A. That the client is not adapting well to the disability
- B. That the problem is likely to get worse before it gets better
- C. That the client is experiencing the usual sequelae of a stroke
- D. That the client is experiencing the side effects of prescribed anticoagulants
Correct Answer: C
Rationale: After a thrombotic stroke, the client often experiences periods of emotional lability, which are characterized by sudden bouts of laughing or crying or by irritability, depression, confusion, or being demanding. This is a normal part of the clinical picture of the client with this health problem, although it may be difficult for health care personnel and family members to deal with it. The other options are incorrect.