NCLEX-RN
NCLEX RN Exam Prep
1. Which of the following statements best describes substance P?
- A. Substance P decreases a client's sensitivity to pain
- B. Substance P levels are drawn before administration of narcotic analgesics
- C. Substance P is found in the brain and is responsible for pain control and management of depression
- D. Substance P is found in the dorsal horn of the spinal column
Correct answer: D
Rationale: Substance P is a neurotransmitter found in the brain and the dorsal horn of the spinal column, not just in the brain. It is associated with pain transmission and modulation. Substance P is known to cause inflammation, edema, and pain. While it plays a role in pain perception, it does not decrease a client's sensitivity to pain (Choice A), nor are its levels typically drawn before administering narcotic analgesics (Choice B). Although substance P is involved in pain control, it is not responsible for managing depression (Choice C). Therefore, the correct statement is that substance P is found in the dorsal horn of the spinal column.
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. Which of the following constitutes the five rights of medication administration?
- A. Right client, right nurse, right time, right dose, right route
- B. Right client, right time, right dose, right route, right order
- C. Right client, right drug, right dose, right time, right route
- D. Right physician, right nurse, right client, right drug, right dose
Correct answer: C
Rationale: The five rights of medication administration are essential to ensure safe and effective drug delivery to clients. The correct answer includes ensuring the right client receives the right drug at the right dose, via the right route, and at the right time. These elements are crucial to prevent medication errors and ensure optimal therapeutic outcomes. Choice A is incorrect as it includes 'right nurse' which is not part of the five rights of medication administration. Choice B is incorrect as it includes 'right order' which is not part of the five rights. Choice C is incorrect as it includes 'right drug' and 'right route', but it lacks 'right client' and 'right time'. Choice D is incorrect as it includes 'right physician' which is not part of the five rights.
4. The mitral valve is synonymous with the term:
- A. Left ventricle
- B. Right atrium
- C. Bicuspid valve
- D. Tricuspid valve
Correct answer: C
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.
5. A nurse is completing an incident report about a medication error that she made when she accidentally administered too much insulin to a diabetic client. All of the following are components of this documentation EXCEPT:
- A. The reason for administering the wrong dose
- B. The type of drug involved
- C. The amount of insulin that was given
- D. Any adverse effects on the client
Correct answer: A
Rationale: When completing an incident report for a medication error, it is essential to include factual information such as the type of drug involved, the amount administered, and any adverse effects on the client. However, stating the reason for administering the wrong dose should be avoided in documentation. The focus should be on reporting what happened rather than assigning blame or admitting fault. This approach helps in ensuring a thorough and accurate account of the medication error without introducing subjective elements that could complicate the investigation or resolution process. Therefore, the correct answer is 'The reason for administering the wrong dose.' Choices A, B, and D are vital components of incident report documentation, providing crucial details that help in understanding the error and its impact on the client.
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