Which of the following would best describe what is meant by ‘diffusion’?
a. The movement of a substance down a concentration gradient until equilibrium is reached
b. The movement of a substance across the cell membrane against a concentration gradient
c. The movement of a substance across the cell membrane by a carrier protein
d. The packaging of proteins for export out of the cell
Ans: a
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You are the team leader in a long-term care facility. A topic for discussion at a recent staff meeting was the effect that a scheduled 1 week absence of one of the staff members will have on the staff and how that absence might be managed
One of the staff members thinks a person should be hired to cover the temporary absence. The other six staff members each want to take on an extra resident for that week. They feel that bringing in someone new would not be best for the residents. Which of the following statements might be made by a person who is considered a good follower? A) "I think the decision is wrong and I really want everyone to reconsider." B) "I don't care. I'll go along with whatever everyone else wants to do." C) "This is your decision – not mine. I will not accept being assigned an additional resident." D) "I certainly don't agree with the decision but I will do my best to carry it out."
After teaching a group of nursing students about amphotericin B, the instructor determines that the teaching was successful when the students identify which of the following as true? Select all that apply
A) The drug is light sensitive. B) It can be administered via IM injection. C) The drug can cause renal damage. D) Amphotericin B is administered in the outpatient setting. E) The drug should be used within 8 hours.
A 39-year-old client has been admitted to the hospital with complaints of increasing fatigue. The history is remarkable for rheumatic fever as a child
The nurse hears a diastolic murmur at the apex when the client is in the left lateral position. The murmur is described as a rumble without radiation. This description is most consistent with: 1. tricuspid regurgitation. 2. mitral regurgitation. 3. mitral stenosis. 4. pulmonic stenosis.
What is the most likely explanation for her presentation?
A 24-year-old cashier comes to your clinic for her first OB visit. She had her last period 10 weeks before, which would mean she is 12 weeks pregnant. She did a home pregnancy urine test a month ago and it was positive. She has had some fatigue and nausea, but not in the last week. She has had no cramping or bleeding. Her vital signs, head, eyes, ears, nose, throat, thyroid, cardiac, pulmonary, and abdominal examinations are all unremarkable. On speculum examination her os is closed and there is a pinkish hue to the cervix. On bimanual examination the cervix is soft and the uterus is enlarged to the pelvic brim. Despite 20 minutes of trying, you cannot find heart tones. You repeat a urine pregnancy test and it is negative. A serum pregnancy test is ordered and is positive. You send the patient for a vaginal ultrasound. A) Earlier than 12 weeks B) Fetal demise (missed abortion) C) False pregnancy