NCLEX-RN
NCLEX RN Predictor Exam
1. When are manual hematocrits done?
- A. to monitor anemia
- B. by using a microhematocrit tube.
- C. to measure the percentage of plasma to cells.
- D. All of the above.
Correct answer: D
Rationale: Manual hematocrits are performed to monitor anemia, which involves measuring the percentage of red blood cells in the blood. The process involves collecting blood in a microhematocrit tube, then centrifuging it to separate the plasma from the cells. By measuring the ratio of plasma to cells, healthcare providers can assess the patient's hematocrit level. Therefore, all the provided options are correct as they collectively describe the purpose and procedure of manual hematocrits.
2. 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: D
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.
3. A small fire has erupted in a wastebasket in the client waiting room. Which of the following is the first action of the nurse?
- A. Call 9-1-1
- B. Find the fire extinguisher
- C. Move clients to safety
- D. Throw water on the fire
Correct answer: C
Rationale: When a fire starts in a healthcare setting, the first action of the nurse is to move clients and anyone who may be in danger to a safe location. Ensuring the safety of clients is the top priority during emergencies. While using a fire extinguisher could be a subsequent step to contain the fire, the immediate focus should be on evacuating individuals from harm's way. Calling 9-1-1 is important, but moving clients to safety should be the nurse's initial response. Throwing water on the fire may not be effective or safe, as it can exacerbate some types of fires.
4. When assessing a 75-year-old patient who has asthma, the nurse notes that the patient assumes a tripod position, leaning forward with arms braced on the chair. How would the nurse interpret these findings?
- A. Interpret that the patient is eager and interested in participating in the interview.
- B. Evaluate the patient for abdominal pain, which may be exacerbated in the sitting position.
- C. Interpret that the patient is having difficulty breathing and assist them to a supine position.
- D. Recognize that a tripod position is often used when a patient is having respiratory difficulties.
Correct answer: D
Rationale: Assuming a tripod position"?leaning forward with arms braced on chair arms"?occurs with chronic pulmonary diseases like asthma. This position helps improve breathing by allowing better use of respiratory muscles. Option A is incorrect because assuming the tripod position is not related to being eager or interested in participating in an interview. Option B is incorrect as abdominal pain is not typically associated with the tripod position in this context. Option C is incorrect as assisting the patient to a supine position would not address the underlying respiratory difficulty indicated by the tripod position. Therefore, the correct interpretation is to recognize that the patient is likely experiencing respiratory difficulties when assuming the tripod position.
5. Which of the following actions can help prevent a fire in the area where a healthcare professional works?
- A. Using an adaptor when plugging in client equipment
- B. Marking equipment that is not working properly and using it carefully until it can be inspected by maintenance
- C. Notifying visitors or posting signs that indicate oxygen is in use in certain areas
- D. Keeping extra equipment stored in one area with other supplies and materials
Correct answer: C
Rationale: The correct action to help prevent a fire in a healthcare setting is to notify visitors or post signs indicating that oxygen is in use in certain areas. Oxygen is a combustible material, and awareness of its presence is crucial to prevent fire hazards. By informing all individuals in the facility about the use of oxygen through clear signs or notifications, the risk of improper use and potential fire accidents can be minimized. Choice A is incorrect because using an adaptor when plugging in client equipment is not directly related to fire prevention. Choice B is also incorrect as marking faulty equipment and using it until inspection does not directly address fire prevention. Choice D is not a recommended action for fire prevention; storing extra equipment with supplies does not address the specific fire risk associated with oxygen use.
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