What is the blood-brain barrier responsible for?
A. guarding the brain by keeping out blood from "drowning" brain cells
B. acting as a resource for neurotransmitters in the blood to communicate with the brain
C. prohibiting drugs and other molecules to pass from the bloodstream into the brain
D. all of the above
C. prohibiting drugs and other molecules to pass from the bloodstream into the brain
You might also like to view...
The nurse administers RhoGAM to an Rh-negative client after delivery of an Rh-positive newborn based on the understanding that this drug will prevent her from:
A) Becoming Rh positive B) Developing Rh sensitivity C) Developing AB antigens in her blood D) Becoming pregnant with an Rh-positive fetus
A patient with diabetes is surprised to learn that he has been having angina when the only problem he has been experiencing is a "bit of fatigue and shortness of breath."
Which of the following should the nurse explain to this patient? 1. fatigue is the first symptom of angina 2. shortness of breath is the first symptom of angina 3. the diabetes has caused you to have reduced pain sensitivity so the fatigue and shortness of breath were the symptoms that you felt 4. there is no classic symptom of angina
The nurse has been performing cardiopulmonary resuscitation (CPR) on an adult. Which artery should the nurse check to evaluate the effectiveness of chest compressions?
a. Radial b. Carotid c. Brachial d. Temporal
Order: Heparin 40,000 units in 1,000 mL 0.9% NS, infuse at 40 mL/h. Calculate the units per day and determine if the dose is within the normal daily range (20,000—40,000 units in 24 h)
1. 1,600 units/d, which is lower than the normal daily range 2. 38,400 units/d, which is within the normal daily range 3. 38,400 units/d, which is not within the normal daily range 4. 1,600 units/d, which is lower than the normal daily range