Functions of the placenta include serving as:
a. a barrier preventing all infectious and toxic substances from reaching the fetus
b. a source of equalizing pressure around the fetus
c. an organ of oxygen exchange between the fetus and mother
d. an organ controlling fetal development
C
Oxygenated blood comes from the placenta and enters the fetus at the umbilicus, through the umbilical vein. Blood moves through fetal circulation, and two umbilical arteries return blood to the placenta to be oxygenated.
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A patient who just started taking efalizumab (Raptiva) phones the clinic complaining of headache, chills, fever, nausea, and myalgia. What response should the nurse offer?
a. "It sounds like you have the flu. Drink plenty of fluids and treat the symptoms." b. "These effects are not uncommon and should subside after the third dose." c. "You are experiencing an allergic reaction. Discontinue the medication." d. "We should draw your blood to be sure you are not at risk for developing clots."
Identify an accurate statement about complex partial seizures.
A. They are often manifested by a sensory change. B. They can become tonic-clonic and involve the entire body. C. They are often accompanied by a muscular twitch that is confined to one body part. D. They may be sensory or motor in nature.
A CCU nurse who works frequently with cardiac patients is putting together a teaching plan to follow when she instructs these patients on how to live with heart failure. Which points should she include in this plan? Select all that apply
A) Discontinue medications once you are feeling better, to avoid adverse effects. B) Take your medications about the same time every day. C) Avoid pepper and spices. D) Remove the saltshaker from your table. E) The best time to weigh yourself is in the afternoon. F) Try to perform 15 to 20 minutes of continuous activity each day.
The nurse is caring for a patient who received halothane as an anesthetic agent. The patient will require additional surgery. When can halothane be used again without risk of halothane's recovery syndrome?
A) 1 week B) 2 weeks C) 3 weeks D) 4 weeks