Nursing Elites

1. When considering the concepts related to blood pressure, which statement best describes the concept of mean arterial pressure (MAP)?

• A. MAP is the pressure of the arterial pulse.
• B. MAP reflects the stroke volume of the heart.
• C. MAP is the pressure forcing blood into the tissues, averaged over the cardiac cycle.
• D. MAP is an average of the systolic and diastolic blood pressures and reflects tissue perfusion.

Correct answer: C

Rationale: Mean Arterial Pressure (MAP) is the pressure that forces blood into the tissues, averaged over the cardiac cycle. It is not the pressure of the arterial pulse (Choice A), nor does it directly reflect the stroke volume of the heart (Choice B). While MAP involves systolic and diastolic pressures, it is not simply an average of these two values as diastole lasts longer. Instead, MAP is closer to diastolic pressure plus one third of the pulse pressure. The best description of MAP is that it represents the pressure forcing blood into the tissues, averaged over the cardiac cycle.

2. Which of the following is one of the three smallest bones in the body?

• A. Vomer
• B. Distal phalanx of the small toe
• C. Stapes
• D. Coccyx

Correct answer: C

Rationale: The stapes, along with the malleus and incus, are the three smallest bones in the human body. These bones are located in the inner ear and play a crucial role in hearing. The vomer is a bone in the nasal cavity and is not one of the smallest bones. The distal phalanx of the small toe is relatively larger and not among the smallest bones. The coccyx, also known as the tailbone, is not one of the smallest bones in the body.

3. A patient is seen in the clinic for reports of "fainting episodes that started last week."? How would the nurse proceed with the examination?

• A. Blood pressure readings are taken in both arms and thighs.
• B. The patient is assisted to a lying position, and their blood pressure is taken.
• C. The patient's blood pressure is recorded in lying, sitting, and standing positions.
• D. The patient's blood pressure is recorded in lying and sitting positions; these numbers are then averaged to obtain a mean blood pressure.

Correct answer: C

Rationale: When a patient reports fainting episodes, it is crucial to assess for orthostatic hypotension. If the nurse suspects volume depletion, the patient has hypertension, is on antihypertensive medications, or has a history of fainting or syncope, blood pressure readings should be taken in three positions: lying, sitting, and standing. This assessment helps detect orthostatic hypotension, which can provide valuable information about the patient's condition. Taking blood pressure readings in multiple positions allows for a comprehensive evaluation of possible postural changes in blood pressure. Choices A, B, and D are incorrect because they do not cover the necessary positions to assess for orthostatic hypotension effectively.

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. Your patient who had AIDS/HIV has just died. Should you still use standard precautions as you provide post-mortem care?

• A. Yes, because the virus is still transmissible
• B. Yes, because respect must still be maintained
• C. No, because the virus is no longer transmissible
• D. No, because it is disrespectful

Correct answer: A

Rationale: Yes, you should still use standard precautions even after an HIV/AIDS patient has died. The virus can remain infectious after death, and healthcare workers need to protect themselves from potential exposure. Choice B is incorrect because while respect is important, the primary reason for using standard precautions is to prevent transmission of infectious diseases. Choice C is incorrect as the virus can still be transmissible even after the patient's death. Choice D is incorrect as using standard precautions is a matter of infection control, not a question of respect.

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