NCLEX NCLEX-RN
NCLEX RN Exam Prep
1. A nurse is preparing to insert a small-bore nasogastric feeding tube for a client's enteral feedings. In which method does the nurse measure the correct length of the tube?
- A. From the tip of the nose to the xiphoid process
- B. From the tip of the nose to the earlobe to the xiphoid process
- C. From the earlobe to the xiphoid process
- D. From the tip of the nose to the earlobe to the umbilicus
Correct answer: From the tip of the nose to the earlobe to the xiphoid process
Rationale: When preparing to insert a nasogastric tube, the nurse must measure the correct length to ensure that the end of the tube will be in the correct position in the stomach. The accurate method to measure the length is from the tip of the nose to the earlobe to the xiphoid process. This length ensures that the end of the tube reaches the stomach, avoiding placement in the small intestine or esophagus. Choice A is incorrect as it does not include the earlobe, which is essential for accurate measurement. Choice C is incorrect because measuring from the earlobe alone does not provide the correct length for positioning in the stomach. Choice D is incorrect as it includes the umbilicus, which is not the appropriate landmark for measuring the length of a nasogastric tube intended for stomach placement.
2. A patient presents to the office with a pencil that has completely penetrated the palm of her hand. Which of the following treatments would be BEST in this situation?
- A. Assist the doctor while he sedates the patient and removes the pencil from her hand.
- B. Have the patient gently pull the pencil out of her hand and assist the physician with stitches.
- C. Wrap a gauze around the pencil, securing it as much as possible until the patient can get to a local emergency room.
- D. Tell the patient to go to the local emergency room. With a doctor's order, give the patient some aspirin for the pain.
Correct answer: Wrap a gauze around the pencil, securing it as much as possible until the patient can get to a local emergency room.
Rationale: Penetrating wounds that leave an object behind may have damaged important blood vessels. Removing the object may lead to significant bleeding. The correct approach is to gently wrap the wound with the object in place to help control bleeding and prevent further injury. The patient should be taken promptly to the nearest emergency room where healthcare professionals can safely and appropriately remove the object and provide necessary treatment. Choice A is incorrect because removing the pencil without proper medical evaluation can worsen the injury. Choice B is incorrect because pulling out the object can cause additional damage and bleeding. Choice D is incorrect because giving aspirin without knowing the extent of the injury and causing potential drug interactions can be harmful.
3. Mr. Freeman has difficulty getting out of bed. The nurse should encourage Mr. Freeman to ______________.
- A. ask for assistance before getting out of bed.
- B. remain in bed because it is safer and he will not fall.
- C. instruct him to stand up quickly from the bed.
- D. lean forward and push up and off the bed.
Correct answer: ask for assistance before getting out of the bed.
Rationale: The nurse should encourage Mr. Freeman to use his call bell and ask for assistance before getting out of bed. This can prevent him from falling. Patients should not stay in bed; they should be encouraged to get out of bed as much as possible to prevent complications like pressure ulcers and muscle weakness. Instructing a patient to stand up quickly from the bed is unsafe as it can lead to dizziness and falls. Similarly, leaning forward and pushing off the bed can increase the risk of falls and should be avoided. Asking for assistance is the safest and most appropriate option to ensure patient safety and prevent accidents.
4. While measuring a patient’s blood pressure, which factor influences a patient’s blood pressure?
- A. Pulse rate
- B. Pulse pressure
- C. Vascular output
- D. Peripheral vascular resistance
Correct answer: Peripheral vascular resistance
Rationale: When measuring a patient's blood pressure, it is important to consider various factors that influence blood pressure. Peripheral vascular resistance plays a crucial role in regulating blood pressure. The level of blood pressure is affected by factors such as cardiac output, peripheral vascular resistance, volume of circulating blood, viscosity, and elasticity of the vessel walls. Pulse rate (Choice A) refers to the number of heartbeats per minute and is not a primary factor influencing blood pressure. Pulse pressure (Choice B) is the difference between systolic and diastolic blood pressure and does not directly impact blood pressure regulation. Vascular output (Choice C) is not a recognized term in blood pressure regulation and is not a primary factor affecting blood pressure.
5. The mitral valve is synonymous with the term:
- A. Left ventricle
- B. Right atrium
- C. Bicuspid valve
- D. Tricuspid valve
Correct answer: Bicuspid valve
Rationale: The mitral valve, also known as the bicuspid valve, is located between the left atrium and the left ventricle, regulating blood flow from the left atrium into the left ventricle. The term 'bicuspid' refers to the valve's two cusps or leaflets. This distinguishes it from the tricuspid valve (Choice D), which has three cusps, making Choice D incorrect. The left ventricle (Choice A) and right atrium (Choice B) are not synonymous with the mitral valve. Therefore, the correct answer is C: Bicuspid valve.
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