Related Questions
Correct Answer is A
Explanation
Choice A Reason: This is correct because Chadwick's sign is a bluish or purplish discoloration of the cervix, vagina, and vulva caused by increased blood flow to the pelvic area during pregnancy. It is one of the earliest signs of pregnancy and can be observed as early as six to eight weeks of gestation.
Choice B Reason: This is incorrect because Goodell's sign is a softening of the cervix due to increased vascularity and edema during pregnancy. It is another early sign of pregnancy and can be detected by palpation around six to eight weeks of gestation.
Choice C Reason: This is incorrect because Hegar's sign is a softening of the lower uterine segment or isthmus during pregnancy. It is also an early sign of pregnancy and can be felt by bimanual examination around six to twelve weeks of gestation.
Choice D Reason: This is incorrect because Homan's sign is a pain in the calf or popliteal region when the foot is dorsiflexed. It is a sign of deep vein thrombosis, which is a potential complication of pregnancy, but not a normal finding.

Correct Answer is ["31"]
Explanation
The correct answer is 31 gtts/min. To calculate the infusion rate, the nurse should use the following formula:
Infusion rate (gtts/min) = Volume (mL) x Drop factor (gtts/mL) / Time (min)
Plugging in the given values, we get:
Infusion rate (gtts/min) = 1000 mL x 15 gtts/mL / 480 min
Infusion rate (gtts/min) = 31.25 gtts/min
Rounding to the nearest whole number, we get 31 gtts/min.
