Nursing Elites

1. 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.

2. On admission to the psychiatric unit, the client is trembling and appears fearful. The nurse's initial response should be to:

• A. Give the client orientation materials and review the unit rules and regulations.
• B. Introduce him/her and accompany the client to the client's room.
• C. Take the client to the day room and introduce him/her to the other clients.
• D. Ask the nursing assistant to get the client's vital signs and complete the admission search.

Correct answer: B

Rationale: Anxiety is triggered by change that threatens the individual's sense of security. In response to anxiety in clients, the nurse should remain calm, minimize stimuli, and move the client to a calmer, more secure/safe setting. The correct initial response is to introduce the client and accompany them to their room. This approach helps the client feel oriented, safe, and supported. Giving orientation materials or reviewing rules and regulations may overwhelm the client further. Taking the client to the day room and introducing them to other clients could increase anxiety by exposing them to unfamiliar faces. Asking the nursing assistant to get vital signs and complete admission tasks can wait until the client feels more settled and secure in their environment.

3. The healthcare professional is preparing to use a stethoscope for auscultation. Which statement is true regarding the diaphragm of the stethoscope?

• A. Used to listen for high-pitched sounds
• B. Used to listen for low-pitched sounds
• C. Should be firmly held against the person's skin to block out low-pitched sounds
• D. Should be lightly held against the person's skin to listen for extra heart sounds and murmurs

Correct answer: A

Rationale: The diaphragm of the stethoscope is designed for listening to high-pitched sounds like breath, bowel, and normal heart sounds. It should be firmly held against the person's skin to ensure optimal sound transmission, leaving a ring after use. On the other hand, the bell of the stethoscope is ideal for detecting soft, low-pitched sounds such as extra heart sounds or murmurs. Therefore, the diaphragm is not used to block out low-pitched sounds but rather to enhance the detection of high-frequency sounds.

4. One of your patients is dependent on a mechanical ventilator for their respiratory needs. The patient cannot breathe on their own. Suddenly, the lights in the patient's room and the entire nursing unit go off. You realize that the electric power has been lost. What is the first thing that you should do for this patient?

• A. Plug the ventilator into the red outlet in the room.
• B. Plug the ventilator into the blue outlet in the room.
• C. Use an Ambu bag to ventilate the patient.
• D. Call the doctor about this emergency.

Correct answer: B

Rationale: In healthcare facilities, emergency generators are in place in case of power outages. The red outlets in patient rooms are connected to the emergency generator and provide power during such situations. By plugging the ventilator into the red outlet, you ensure that the patient's mechanical ventilation needs are met despite the power loss. Using an Ambu bag or calling the doctor should be secondary actions after ensuring the ventilator is powered correctly. Plugging the ventilator into the blue outlet is incorrect and can result in the ventilator not functioning during a power outage.

5. The patient with migraine headaches has a seizure. After the seizure, which action can you delegate to the nursing assistant?

• A. Document the seizure
• B. Perform neurologic checks
• C. Take the patient's vital signs
• D. Restrain the patient for protection

Correct answer: C

Rationale: After a patient with migraine headaches has a seizure, it is important to assess their vital signs to monitor their condition. This task can be safely delegated to a nursing assistant as it falls within their scope of practice. Documenting the seizure and performing neurologic checks require a higher level of training and should be done by a nurse or healthcare provider. Restraint should never be used as a first-line intervention after a seizure unless there is an immediate threat to the patient's safety, and it should be done following proper protocols and with appropriate training.

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