A nurse is preparing to administer vancomycin IV to an adult client. The client asks the nurse if the medication can be given 2 hr earlier. Which of the following statements should the nurse make?

This is because at 12 weeks of gestation, the uterus is still low in the pelvis and the fetal heart tones are best audible through the fetal back, which is usually located just above the symphysis pubis. The fetal heart rate at this stage is normally between 120 and 180 beats per minute.
Choice B is wrong because measuring the fundal height is not necessary to determine the placement of the ultrasound stethoscope at 12 weeks of gestation. The fundal height is usually measured from 20 weeks of gestation onwards to assess fetal growth and estimate gestational age.
Choice C is wrong because placing the client in a side-lying position prior to assessing the fetal heart rate is not required at 12 weeks of gestation. This position may be helpful later in pregnancy to improve maternal blood flow and oxygen delivery to the fetus, especially if there are signs of fetal distress or hypoxia.
Choice D is wrong because performing Leopold maneuvers prior to auscultating the fetal heart rate is not appropriate at 12 weeks of gestation.
Leopold maneuvers are a series of four steps to palpate the abdomen and determine the fetal position, presentation, lie, and engagement. They are usually performed after 24 weeks of gestation when the fetus is large enough to be felt through the abdominal wall.

B, C, and D. These findings require follow-up because they indicate possible complications of chemotherapy, such as infection, low blood cell counts, and lung damage.

Choice B is correct because a temperature of 38.6° C (101.5° F) is a sign of fever, which can indicate an infection. Chemotherapy can weaken the immune system and make the client more prone to infections.

Choice C is correct because a WBC count of 3,800/mm3 is below the normal range of 5,000 to 10,000/mm3 and indicates leukopenia, a condition of low white blood cells. Chemotherapy can cause leukopenia by damaging the bone marrow where blood cells are produced.

Choice D is correct because crackles heard at the bases of the lungs are abnormal breath sounds that can indicate fluid accumulation or inflammation in the lungs. Chemotherapy can cause lung damage by affecting the cells that line the airways or by triggering an immune response.

Choice A is wrong because a potassium level of 3.6 mEq/L is within the normal range of 3.5 to 5 mEq/L and does not require follow-up.

Choice E is wrong because a blood pressure of 114/56 mm Hg is within the normal range of less than 120/80 mm Hg and does not require follow-up.