NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. A 15-year-old female who ingested 15 tablets of maximum strength acetaminophen 45 minutes ago is rushed to the emergency department. Which of these orders should the nurse do first?
- A. Gastric lavage
- B. Administer acetylcysteine (Mucomyst) orally
- C. Start an IV Dextrose 5% with 0.33% normal saline to keep the vein open
- D. Have the patient drink activated charcoal mixed with water
Correct answer: A
Rationale: Acetaminophen overdose is extremely toxic to the liver causing hepatotoxicity. Early symptoms of hepatic damage include nausea, vomiting, abdominal pain, and diarrhea. If not treated immediately, hepatic necrosis occurs and may lead to death. Removing as much of the drug as possible is the first step in treatment for acetaminophen overdose, this is best done through gastric lavage. Gastric lavage (irrigation) and aspiration consist of flushing the stomach with fluids and then aspirating the fluid back out. This procedure is done in life-threatening cases such as acetaminophen toxicity and only if less than one (1) hour has occurred after ingestion.
2. A diabetic patient's arterial blood gas (ABG) results are pH 7.28; PaCO2 34 mm Hg; PaO2 85 mm Hg; HCO3 18 mEq/L. The nurse would expect which finding?
- A. Intercostal retractions
- B. Kussmaul respirations
- C. Low oxygen saturation (SpO2)
- D. Decreased venous O2 pressure
Correct answer: B
Rationale: Kussmaul respirations (deep and rapid) are a compensatory mechanism for metabolic acidosis. The low pH and low bicarbonate levels indicate metabolic acidosis. Intercostal retractions, low oxygen saturation, and decreased venous O2 pressure are not associated with acidosis. Intercostal retractions typically occur in respiratory distress, while low oxygen saturation and decreased venous O2 pressure are more related to respiratory or circulatory issues, not metabolic acidosis.
3. Parents of a 6-month-old breastfed baby ask the nurse about increasing the baby's diet. Which of the following should be added first?
- A. Cereal
- B. Eggs
- C. Meat
- D. Juice
Correct answer: A
Rationale: The correct answer is 'Cereal.' The guidelines of the American Academy of Pediatrics recommend introducing one new food at a time, starting with strained cereal. Cereal is often recommended as a first solid food for infants due to its soft texture and iron-fortified properties, which are important for the baby's development. Eggs and meat are common allergenic foods and are usually introduced later. Juice is not recommended for infants under 1 year old due to its high sugar content and lack of nutritional value compared to whole fruits.
4. A patient underwent fiberoptic colonoscopy 18 hours ago and presents to the emergency department with increasing abdominal pain, fever, and chills. Which of the following conditions poses the most immediate concern?
- A. Bowel perforation
- B. Viral gastroenteritis
- C. Colon cancer
- D. Diverticulitis
Correct answer: A
Rationale: The correct answer is bowel perforation. Bowel perforation is the most serious complication of fiberoptic colonoscopy, with signs such as progressive abdominal pain, fever, chills, and tachycardia indicating advancing peritonitis. Although colonoscopic perforation is rare (0.03% to 0.7% incidence), it can lead to high mortality and morbidity rates. Viral gastroenteritis (Choice B) typically presents with symptoms like diarrhea, nausea, vomiting, and abdominal cramps, but it is not the most immediate concern in this scenario. Colon cancer (Choice C) and diverticulitis (Choice D) are important conditions but are less likely to present acutely after colonoscopy compared to bowel perforation.
5. A child diagnosed with Hepatitis A is under the care of a healthcare provider. Which of the following precautions would be most important to take to prevent the transmission of this infectious disease?
- A. Encourage the Hepatitis A vaccine for family members and siblings
- B. Use needleless systems if possible; otherwise, use careful needle precautionary measures
- C. Teach the child and enforce strict and frequent hand washing
- D. Teach the child and family about the dangers of contaminated food and water
Correct answer: C
Rationale: The most crucial precaution to prevent the transmission of Hepatitis A is to emphasize strict and frequent hand washing. Hepatitis A is a virus that spreads through the oral-fecal route and can survive on human hands. Hand washing is the most effective measure to reduce the risk of transmission. Encouraging the Hepatitis A vaccine for family members and siblings (Choice A) is beneficial for prevention but not as directly impactful as hand washing. While needle precautions (Choice B) are important in healthcare settings, they are not directly relevant to preventing the spread of Hepatitis A. Teaching about the dangers of contaminated food and water (Choice D) is important for general hygiene but may not be as effective as emphasizing hand hygiene in preventing the spread of Hepatitis A.
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