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When auscultating the blood pressure of a 25-year-old patient, the nurse notices that the phase I Korotkoff sounds begin at 200 mm Hg. At 100 mm Hg, the Korotkoff sounds muffle. At 92 mm Hg, the Korotkoff sounds disappear. How should the nurse record this patient's blood pressure?
- A. 200/92
- B. 200/100
- C. 100/200/92
- D. 200/100/92
Correct Answer: A
Rationale: When auscultating blood pressure, it is crucial to note the points at which Korotkoff sounds change. In adults, the last audible sound indicates the diastolic pressure. In this case, the Korotkoff sounds muffle at 100 mm Hg and disappear at 92 mm Hg. Therefore, the blood pressure should be recorded as systolic/diastolic, which is 200/92. Choices B, C, and D are incorrect because they do not reflect the correct points where the Korotkoff sounds change during blood pressure measurement.
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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.
A triage nurse has four clients arrive in the emergency department within 15 minutes. Which client should the triage nurse send back to be seen first?
- A. A 2-month-old infant with a history of rolling off the bed and having a bulging fontanelle with crying
- B. A teenager who suffered singed facial hair while camping
- C. An elderly client with complaints of frequent liquid brown-colored stools
- D. A middle-aged client with intermittent pain behind the right scapula
Correct Answer: B
Rationale: The correct answer is the teenager who suffered singed facial hair while camping. This client is in the greatest danger with a potential risk of respiratory distress. Singed facial hair indicates exposure to heat or fire in close range, which could have caused serious damage to the interior of the lungs. It's crucial to prioritize this client as the interior lining of the lungs has no nerve fibers, so swelling may not be immediately noticeable. The other choices, while concerning, do not present an immediate life-threatening situation. The infant's condition may be serious but does not pose an immediate danger of respiratory distress. The elderly client's symptoms could indicate gastrointestinal issues, which are important but not as urgent as potential respiratory compromise. The middle-aged client's pain behind the right scapula, while uncomfortable, does not indicate an acute life-threatening condition requiring immediate attention.
You are preparing to admit a patient with a seizure disorder. Which of the following actions can you delegate to an LPN/LVN?
- A. Complete admission assessment.
- B. Set up oxygen and suction equipment.
- C. Place a padded tongue blade at the bedside.
- D. Pad the side rails before the patient arrives.
Correct Answer: B
Rationale: The correct answer is to delegate the task of setting up oxygen and suction equipment to the LPN/LVN. This task falls within their scope of practice and can be safely performed by them. Completing the admission assessment (Choice A) typically requires a higher level of assessment and critical thinking, making it more appropriate for a registered nurse. Placing a padded tongue blade at the bedside (Choice C) involves potential airway management, which is a more complex task and should be done by a higher-level provider. Padding the side rails before the patient arrives (Choice D) is a task related to patient safety and should be done by the healthcare team as a whole, not solely delegated to an LPN/LVN.
What type of blood pressure measurement error is most likely to occur if the nurse does not check for the presence of an auscultatory gap?
- A. Diastolic blood pressure may not be heard.
- B. Diastolic blood pressure may be falsely low.
- C. Systolic blood pressure may be falsely low.
- D. Systolic blood pressure may be falsely high.
Correct Answer: C
Rationale: If an auscultatory gap is undetected, a falsely low systolic reading may occur. This gap can lead to an underestimation of the systolic blood pressure, causing potential misinterpretation of the patient's condition. The diastolic blood pressure may not be heard due to the gap, but the critical issue in this scenario is the risk of underestimating systolic blood pressure, which can impact clinical decision-making. Choices B, C, and D are incorrect because the key concern in this context is the potential for a falsely low systolic blood pressure reading when an auscultatory gap is not assessed.
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.