A nurse is preparing to administer gentamicin 2 mg/kg IM to a client who has pelvic inflammatory disease and weighs 132 lb. Available is gentamicin injection 40 mg/mL. How many mL should the nurse administer?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["3"]
Use the following formula to calculate the amount of gentamicin to administer:
Volume (mL) = Dose (mg) / Concentration (mg/mL)
First, I need to convert the client's weight from pounds to kilograms. One pound is equal to 0.4536 kilograms. Therefore, 132 lb is equal to 132 x 0.4536 = 59.8752 kg.
Next, I need to multiply the client's weight by the prescribed dose of gentamicin per kilogram. The prescribed dose is 2 mg/kg, so the total dose is 2 x 59.8752 = 119.7504 mg.
Finally, I need to divide the total dose by the concentration of gentamicin in the injection. The concentration is 40 mg/mL, so the volume is 119.7504 / 40 = 2.99376 mL.
To round the answer to the nearest whole number, I need to look at the first decimal place. If it is 5 or more, I round up; if it is less than 5, I round down. In this case, the first decimal place is 9, which is more than 5, so I round up. Therefore, the final answer is 3 mL.
The nurse should administer 3 mL of gentamicin injection to the client.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Amniocentesis is a prenatal testing procedure that involves inserting a thin needle through the abdomen into the uterus and withdrawing a small amount of amniotic fluid, which contains fetal cells and other substances¹. The fluid is then analyzed in a laboratory to detect certain chromosomal conditions (such as Down syndrome or trisomy 18), genetic conditions (such as cystic fibrosis or Tay-Sachs disease), or neural tube defects (such as spina bifida or anencephaly) ¹². Amniocentesis can also be used to determine the sex of the fetus, but this is not the primary purpose of the test¹².
The other options are incorrect because:
a) Amniocentesis cannot be scheduled for later today if the client requests it. Amniocentesis requires informed consent, pre-test counseling, and preparation of the equipment and laboratory. Amniocentesis is usually performed between 14 and 20 weeks of gestation, and some medical facilities may perform it as early as 11 weeks, but not on the same day as the request¹²³.
c) The client cannot have an amniocentesis until she is at least 35 years of age. This is a common misconception, as advanced maternal age (35 years or older) is one of the risk factors for chromosomal abnormalities in the fetus, and therefore an indication for amniocentesis. However, amniocentesis can be offered to any pregnant woman who has a personal or family history of genetic conditions, abnormal prenatal screening results, or other indications for fetal diagnosis¹²³.
d) The provider will not schedule a chorionic villus sampling (CVS) to determine the sex of the baby. CVS is another prenatal testing procedure that involves taking a small sample of placental tissue, either through the cervix or the abdomen, and analyzing it for chromosomal or genetic conditions. CVS can also determine the sex of the fetus, but it is usually performed earlier than amniocentesis, between 10 and 13 weeks of gestation. CVS has some advantages over amniocentesis, such as earlier diagnosis and shorter waiting time for results, but it also has some disadvantages, such as higher risk of miscarriage, infection, bleeding, or limb defects¹²⁴. CVS is not routinely offered to all pregnant women, and it is not a substitute for amniocentesis.
Correct Answer is D
Explanation
This is the only option that is true and relevant to maternal cytomegalovirus infection. CMV can be transmitted from the newborn to the mother or other caregivers through contact with the saliva and urine of the newborn, which may contain high amounts of the virus. Therefore, it is important to practice good hygiene and avoid contact with these body fluids when caring for a newborn with congenital CMV.
a) This infection does not require that airborne precautions be initiated for the newborn. Airborne precautions are used to prevent the spread of infections that are transmitted by small droplets that can remain suspended in the air and travel over long distances, such as tuberculosis, measles, or chickenpox. CMV is not transmitted by airborne route, and standard precautions are sufficient to prevent exposure to blood or body fluids that may contain CMV
b) Mothers will not receive prophylactic treatment with acyclovir prior to delivery. Acyclovir is an antiviral medication that is used to treat herpes simplex virus (HSV) infections, such as cold sores, genital herpes, or neonatal herpes. It has no effect on CMV infection, and it is not recommended for pregnant women or newborns with CMV.
c) Lesions are not visible on the mother's genitals. Lesions are a sign of HSV infection, not CMV infection. HSV can cause painful blisters or ulcers on the mouth or genitals, and it can be transmitted to the newborn during delivery. CMV does not cause any visible symptoms on the mother's genitals, and it can be transmitted to the newborn during pregnancy, delivery, or breastfeeding.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today