NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. A 1-year-old child is diagnosed with intussusception, and the mother of the child asks the student nurse to describe the disorder. Which statement by the student nurse indicates correct understanding of this disorder?
- A. It is an acute bowel obstruction.
- B. It is a condition that causes an acute inflammatory process in the bowel.
- C. It is a condition in which a distal segment of the bowel prolapses into a proximal segment of the bowel.
- D. It is a condition in which a proximal segment of the bowel prolapses into a distal segment of the bowel.
Correct answer: D
Rationale: Intussusception is a condition in which a proximal segment of the bowel telescopes or prolapses into a distal segment of the bowel. This leads to bowel obstruction and potential ischemia. It is not an acute bowel obstruction, as the obstruction is caused by the telescoping of bowel segments rather than a blockage in the bowel lumen. Intussusception is not primarily an inflammatory process; instead, it is a mechanical issue involving bowel invagination. Choice A is incorrect as it does not accurately describe the pathophysiology of intussusception. Choice C is incorrect because it presents the opposite scenario of what happens in intussusception.
2. The physician has decided to perform a thoracentesis based on Mr. R's assessment. Which of the following actions from the nurse is most appropriate?
- A. Instruct the client not to talk during the procedure
- B. Assist the client to sit upright or slightly lean forward
- C. Insert a 20-gauge needle just above the 4th intercostal space
- D. Connect the needle to suction to remove fluid that has collected in the pleural space
Correct answer: A
Rationale: The correct answer is to instruct the client not to talk during the procedure. This is important to prevent air from being drawn into the pleural space during the thoracentesis. Choice B is incorrect because the client should be sitting upright or slightly leaning forward during the procedure to facilitate access to the pleural space. Choice C is incorrect as the nurse should not perform the thoracentesis procedure, which involves inserting a needle into the pleural space - this is the physician's responsibility. Choice D is incorrect as connecting the needle to suction to remove fluid is not the appropriate procedure for a thoracentesis. Thoracentesis is typically done to remove fluid or air for diagnostic or therapeutic purposes, not to connect to suction to remove fluid that has collected in the pleural space.
3. The nurse analyzes the results of a patient's arterial blood gases (ABGs). Which finding would require immediate action?
- A. The bicarbonate level (HCO3) is 31 mEq/L
- B. The arterial oxygen saturation (SaO2) is 92%
- C. The partial pressure of CO2 in arterial blood (PaCO2) is 31 mm Hg
- D. The partial pressure of oxygen in arterial blood (PaO2) is 59 mm Hg
Correct answer: D
Rationale: While all the values are abnormal, the low PaO2 level of 59 mm Hg indicates that the patient is at a critical point on the oxyhemoglobin dissociation curve. At this level, a small decrease in PaO2 can lead to a significant drop in oxygen saturation and compromise tissue oxygenation. Therefore, immediate intervention is necessary to improve the patient's oxygenation status. Choice A (HCO3 of 31 mEq/L) may indicate metabolic alkalosis or compensation for respiratory acidosis; however, it does not require immediate action in this scenario. Choice B (SaO2 of 92%) is slightly low but not critically low to require immediate action. Choice C (PaCO2 of 31 mm Hg) is within the normal range and does not indicate immediate danger to the patient.
4. The nurse has been assigned to care for a neonate just delivered who has gastroschisis. Which concern should the nurse address in the client's plan of care?
- A. Infection.
- B. Poor body image.
- C. Decreased urinary elimination.
- D. Cracking oral mucous membranes.
Correct answer: A
Rationale: In a neonate with gastroschisis, the bowel herniates through a defect in the abdominal wall without a covering membrane, which puts the neonate at high risk of infection. Immediate surgical repair is necessary due to the vulnerability of the exposed bowel to infection. Therefore, the most critical concern for the nurse to address in the plan of care of a neonate with gastroschisis is preventing infection. Poor body image is not a priority in neonatal care as neonates do not have body image concerns. Decreased urinary elimination is not typically a direct consequence of gastroschisis as it primarily affects the gastrointestinal system, not the genitourinary system. Cracking oral mucous membranes are not relevant to gastroschisis as it involves the lower gastrointestinal system, not the oral cavity.
5. An 85-year-old male has been losing mobility and gaining weight over the last two months. The patient also has the heater running in his house 24 hours a day, even on warm days. Which of the following tests is most likely to be performed?
- A. CBC (complete blood count)
- B. ECG (electrocardiogram)
- C. Thyroid function tests
- D. CT scan
Correct answer: C
Rationale: The symptoms of weight gain and poor temperature tolerance in an elderly male suggest a potential thyroid dysfunction. Thyroid function tests are crucial in differentiating between hyperthyroidism, hypothyroidism, and a euthyroid state. These tests involve measuring the serum levels of thyroid hormones T3 and T4, also known as thyroxine, to evaluate thyroid function accurately. A complete blood count (Choice A) would not directly address the symptoms presented. An electrocardiogram (Choice B) assesses heart activity and would not be the primary test for these symptoms. A CT scan (Choice D) provides detailed images of internal organs and structures, which would not be the initial investigation for the described symptoms.
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