A nurse is caring for a client who experienced severe head trauma. The client's partner asks the nurse why they are concerned about the mean arterial pressure (MAP). The nurse should explain that MAP determines which of the following?
Cerebral blood flow
The client's intake and output needs
Regulation of blood pressure
Resorption of cerebrospinal fluid
The Correct Answer is A
A. Cerebral blood flow. MAP is crucial for maintaining adequate cerebral perfusion pressure, ensuring enough blood flow to the brain.
B. The client's intake and output needs. MAP does not directly influence intake and output needs; it is more directly related to blood flow and tissue perfusion.
C. Regulation of blood pressure. MAP is a measure of average blood pressure but not a regulator of it.
D. Resorption of cerebrospinal fluid. CSF resorption is not directly influenced by MAP; it’s regulated by intracranial pressure and other factors.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is B
Explanation
A. Swelling of the lower extremity can create a wound that is difficult to heal. Swelling typically relates to venous ulcers, not arterial ulcers, which are caused by reduced blood flow.
B. Decreased blood flow to the area can cause the wound and decrease the healing. Peripheral artery disease causes decreased blood flow, leading to poor oxygenation and slow healing of arterial ulcers.
C. Lower extremity compression stockings likely caused the wound to occur. Compression stockings are used in venous insufficiency and do not cause arterial ulcers.
D. Increased blood sugar associated with the condition is likely the cause of the wound not healing. While high blood sugar can impair healing, decreased blood flow is the primary cause of arterial ulcers in PAD.
Correct Answer is C
Explanation
A. Advise the client to come into the office. The client needs immediate emergency intervention, not a routine office visit.
B. Advise the client to take an antacid. Chest pain unrelieved by nitroglycerin may indicate myocardial infarction; an antacid would not help.
C. Instruct the client to call 911. Persistent chest pain unrelieved by nitroglycerin warrants emergency attention due to potential heart attack.
D. Tell the client to take another nitroglycerin tablet in 15 min. The protocol allows taking an additional dose in 5 minutes, but emergency services should be called for unrelieved chest pain.