NCLEX-RN
NCLEX RN Exam Preview Answers
1. When examining an infant, which area should the nurse examine first?
- A. Ear
- B. Nose
- C. Throat
- D. Abdomen
Correct answer: D
Rationale: When examining an infant, the nurse should start by examining the least-distressing areas first before moving on to more invasive areas. The abdomen is typically the least distressing area to examine, so it should be assessed first. Examining the eye, ear, nose, and throat are considered more invasive and should be saved for last. Therefore, the correct choice is to examine the abdomen first to ensure a comfortable and less distressing examination process for the infant. Choices A, B, and C (Ear, Nose, Throat) are more invasive areas and should be examined after the abdomen.
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. What technique would the nurse use to accurately assess a rectal temperature in an adult?
- A. Use a lubricated blunt tip thermometer.
- B. Insert the thermometer 2 to 3 inches into the rectum.
- C. Leave the thermometer in place for up to 8 minutes if the patient is febrile.
- D. Wait 2 to 3 minutes if the patient has recently smoked a cigarette.
Correct answer: A
Rationale: To accurately assess a rectal temperature in an adult, a nurse should use a lubricated rectal thermometer with a short, blunt tip. The thermometer is inserted only 2 to 3 cm (1 inch) into the rectum and left in place for 2 minutes. Choice B is incorrect as inserting the thermometer 2 to 3 inches would be too deep and inaccurate. Choice C is incorrect as leaving the thermometer in place for up to 8 minutes is unnecessary and can cause discomfort. Choice D is incorrect as smoking a cigarette does not impact rectal temperatures.
4. When assessing a pulse, what should be noted?
- A. Rate
- B. Rate and quality
- C. Rate, quality, and fullness
- D. Rate, quality, fullness, and regularity
Correct answer: C
Rationale: When assessing a pulse, it is important to note the rate (number of beats per minute), quality (regular or irregular), and fullness (thread and weak or full and bounding). These aspects provide crucial information about the patient's cardiovascular status. Regularity, as mentioned in option D, is not typically assessed during a pulse check and is not necessary for routine pulse assessment. Choice A is too limited as it overlooks important aspects beyond just the rate. Choice B improves by adding quality but still lacks the fullness aspect. Choice C is the most comprehensive and accurate as it includes all three essential aspects for a thorough pulse assessment.
5. You have been assigned to take an apical pulse for one of the patients on the nursing unit. How will you do this?
- A. You will place the stethoscope over the heart and listen for any irregular beats.
- B. You will place the stethoscope over the heart and count the beats per minute.
- C. You will place your fingertip over the patient's wrist and feel for any irregular beats.
- D. You will place your fingertip over the patient's wrist and count the beats per minute.
Correct answer: B
Rationale: To take an apical pulse accurately, you should place the stethoscope over the heart and count the number of beats per minute. This method provides a precise assessment of the heart rate. While listening for irregular beats is essential for assessing the heart's rhythm, the primary objective of taking an apical pulse is to determine the heart rate. Choices C and D are incorrect because the apical pulse is not taken at the wrist; instead, it is obtained by auscultating at the apex of the heart, usually at the point where the fifth intercostal space meets the midclavicular line.
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