ATI LPN
LPN Nursing Fundamentals Questions
Question 1 of 5
A client with a traumatic brain injury has an intracranial pressure (ICP) of $15 \mathrm{mmHg}$ and a mean arterial pressure (MAP) of $90 \mathrm{mmHg}$. What is the cerebral perfusion pressure (CPP)?
Correct Answer: B
Rationale: CPP = MAP - ICP; 90 - 15 = 75 mmHg (B). Other options (A, C, D) miscalculate. B is correct. Rationale: CPP of 75 mmHg is within normal (60-100), ensuring brain perfusion, per neurocritical care, critical for TBI outcomes.
Question 2 of 5
You would refer to the early phase of scar tissue formation as which of the following kinds of tissue?
Correct Answer: C
Rationale: The early phase of scar tissue formation is granulation tissue, rich in new blood vessels and collagen, aiding wound healing. Keloids are excessive scars, cicatrix is the final scar, and fibrous tissue is later-stage. Recognizing granulation informs nursing wound care, ensuring proper healing progression.
Question 3 of 5
You partially darken a room and ask the client to look straight ahead. You use a penlight and, approaching from the side you shine the light, it constricts. You remove the light and then shine it on the same pupil again. You also observe the response of the other pupil. You would normally find the other pupil doing which of the following things?
Correct Answer: D
Rationale: The other pupil constricts consensually when light hits one, a normal reflex. No change, dilation, or mixed response indicates abnormality. Nurses test this for brain function.
Question 4 of 5
The nurse notices that the client has a hematocrit of 70 percent. This level of hematocrit will most likely affect the vital signs in which of the following ways?
Correct Answer: A
Rationale: A 70% hematocrit, abnormally high, increases blood viscosity, elevating blood pressure, not lowering pulse or raising temperature. Nurses monitor this for circulatory strain.
Question 5 of 5
What is the purpose of utilizing proper positioning techniques for patients?
Correct Answer: A
Rationale: Proper positioning techniques aim to maintain patient comfort by reducing pressure points, aligning the body, and preventing pain or discomfort during rest or treatment. This focus enhances patient well-being, crucial for recovery and satisfaction in care settings. Encouraging social engagement, aiding walking, or enhancing coordination, while valuable, aren't the core objectives of positioning those require distinct interventions like group activities or physical therapy. Comfort underpins healing, as unrelieved pressure or misalignment can lead to complications like ulcers or muscle strain. Nurses prioritize this to support physiological stability, ensuring patients feel at ease, which indirectly supports broader therapeutic goals without being the primary intent.