Nursing Elites

1. While explaining an illness to a 10-year-old, what should the nurse keep in mind about the cognitive development at this age?

• A. They are able to make simple associations of ideas
• B. They are able to think logically in organizing facts
• C. Interpretation of events originates from their own perspective
• D. Conclusions are based on previous experiences

Correct answer: B

Rationale: At the age of 10, children are in the concrete operations stage according to Piaget. They are capable of mature thought when allowed to manipulate and organize objects. This means they can think logically, organize facts, and understand cause-and-effect relationships. Choices A, C, and D are incorrect. While simple associations of ideas may occur, the key cognitive ability at this stage is the capacity for logical thought and organization of information. Interpretation of events from their own perspective is more characteristic of younger children, and conclusions based on previous experiences are more aligned with older children or adults.

2. When evaluating the temperature of older adults, what aspect should the healthcare provider remember about an older adult's body temperature?

• A. The body temperature of the older adult is lower than that of a younger adult.
• B. An older adult's body temperature is approximately the same as that of a young child.
• C. Body temperature varies based on the type of thermometer used.
• D. In older adults, body temperature can fluctuate widely due to less effective heat control mechanisms.

Correct answer: A

Rationale: When evaluating the temperature of older adults, it is important to note that their body temperature is usually lower than that of younger adults, with a mean temperature of 36.2�C. Choice B is incorrect because an older adult's body temperature is not approximately the same as that of a young child. Choice C is incorrect because body temperature is a physiological parameter and does not vary based on the type of thermometer used. Choice D is incorrect because while older adults may have less effective heat control mechanisms, their body temperature is typically lower, not widely fluctuating.

3. What does preload refer to?

• A. The volume of blood entering the left side of the heart
• B. The volume of blood entering the right side of the heart
• C. The pressure in the venous system that the heart must overcome to pump the blood
• D. The pressure in the arterial system that the heart must overcome to pump the blood

Correct answer: B

Rationale: Preload refers to the volume of blood that enters the right side of the heart. This volume stretches the fibers in the heart before contraction. Preload is an essential factor in determining the force of ventricular contraction. Choices A, C, and D are incorrect. Choice A is incorrect because preload is specifically related to the volume of blood entering the right side of the heart. Choices C and D are incorrect as they refer to afterload, which is the pressure that the heart must overcome to pump blood out of the ventricles into the systemic or pulmonary circulation.

4. A patient has come to the office for a blood draw. The patient starts to sweat and is very anxious. Which of the following would be the BEST way to proceed?

• A. Do not perform the procedure. Notify the physician of the reason why.
• B. Perform the procedure but pay close attention for signs of potential syncope.
• C. Allow the patient to reschedule for a time when he isn't as anxious.
• D. Have the physician draw the blood.

Correct answer: B

Rationale: In the scenario where a patient is sweating and anxious, it is important to assess for signs of potential syncope (fainting) while proceeding with the blood draw. If the patient does not exhibit signs of fainting, the phlebotomy procedure can be performed safely. Postponing the procedure may not address the patient's anxiety and inconvenience them. Having the physician draw the blood is not necessary if the phlebotomist can handle the situation effectively.

5. Rales and rhonchi are frequently noted during an examination of lung sounds. What is the difference between the two?

• A. Rales are louder.
• B. Rhonchi are noted only in infants.
• C. Rales occur on inspiration, rhonchi on expiration.
• D. Rales are noted only in infants.

Correct answer: C

Rationale: The correct answer is that rales occur on inspiration, while rhonchi occur on expiration. Rales are typically heard during inhalation when there is fluid in the alveoli or air passages. Rhonchi, on the other hand, are caused by air passing through obstructed airways during exhalation due to secretions in the respiratory tract. Choice A is incorrect because the loudness of the sounds is not the primary distinguishing factor between rales and rhonchi. Choice B is incorrect as rhonchi can be heard in individuals beyond infancy. Choice D is incorrect as rales can be present in patients of various age groups, not just infants.

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