NCLEX-RN
Results Analysis Questions
Extract:
Question 1 of 5
A child is admitted to the pediatric unit with a diagnosis of acute gastroenteritis. The nurse monitors the child for signs of hypovolemic shock as a result of fluid and electrolyte losses that have occurred in the child. Which finding would indicate the presence of compensated shock?
Correct Answer: D
Rationale: Shock may be classified as compensated or decompensated. In compensated shock, the child becomes tachycardic in an effort to increase the cardiac output. The blood pressure remains normal. The capillary refill time may be prolonged and more than 2 seconds, and the child may become irritable as a result of increasing hypoxia. The most prevalent cause of hypovolemic shock is fluid and electrolyte losses associated with gastroenteritis. Diarrhea is not a sign of shock; rather, it is a cause of the fluid and electrolyte imbalance.
Question 2 of 5
The mother whose child is generally alert and participates well in classroom activities is concerned that the teacher now reported that the child has frequent periods during the day when he appears to be staring off into space. The nurse should suspect that the child has which problem?
Correct Answer: B
Rationale: Absence seizures are a type of generalized seizure. They consist of a sudden, brief (usually 5 to 10 seconds) arrest of the child's motor activities accompanied by a blank stare and a loss of awareness. The child's posture is maintained at the end of the seizure, and the child returns to activity that was in process as though nothing has happened. School phobia includes physical symptoms that usually occur at home and that may prevent the child from attending school. Behavior problems would be noted by more overt symptoms than the ones described in this question. A child with attention-deficit/hyperactivity syndrome becomes easily distracted, is fidgety, and has difficulty following directions.
Question 3 of 5
A child is admitted to the hospital with a suspected diagnosis of bacterial endocarditis. The child has been experiencing fever, malaise, anorexia, and a headache. Which diagnostic study will confirm the diagnosis?
Correct Answer: A
Rationale: The diagnosis of bacterial endocarditis is primarily established on the basis of a positive blood culture of the organisms and the visualization of vegetation on echocardiographic studies. Other laboratory tests that may help confirm the diagnosis are an elevated sedimentation rate and the C-reactive protein level. An ECG is not usually helpful for the diagnosis of bacterial endocarditis.
Question 4 of 5
A child is admitted to the hospital with a suspected diagnosis of idiopathic thrombocytopenic purpura (ITP) and diagnostic studies are performed. Which diagnostic result is indicative of this disorder?
Correct Answer: C
Rationale: The laboratory manifestations of ITP include the presence of a low platelet count of usually less than 20,000 mm^3 (20 × 10^9/L). Thrombocytopenia is the only laboratory abnormality expected with ITP. If there has been significant blood loss, there is evidence of anemia in the blood cell count. If a bone marrow examination is performed, the results with ITP show a normal or increased number of megakaryocytes, which are the precursors of platelets. Option 4 indicates the bone marrow result that would be found in a child with leukemia.
Question 5 of 5
The nurse is assessing a 39-year-old Caucasian client with a blood pressure (BP) of 152/92 mm Hg at rest, a total cholesterol level of 180 mg/dL (4.5 mmol/L), and a fasting blood glucose level of 90 mg/dL (5.14 mmol/L). On which risk factor for coronary artery disease should the nurse place priority?
Correct Answer: B
Rationale: Hypertension, cigarette smoking, and hyperlipidemia are major risk modifiable factors for coronary artery disease. Glucose intolerance, obesity, and response to stress are also contributing factors. An age of more than 40 years is a nonmodifiable risk factor. A cholesterol level of 180 mg/dL (4.5 mmol/L) and a blood glucose level of 90 mg/dL (5.14 mmol/L) are within the normal range. The nurse places priority on major risk factors that need modification.