HESI RN
Maternity HESI Quizlet
1. The healthcare provider prescribes Amoxicillin 500mg PO every 8hrs for a child who weighs 22 pounds. The available suspension is labeled Amoxicillin Suspension 250mg/5ml. The recommended maximum dose is 50mg/kg/24hr. How many mL should the nurse administer in a single dose based on the child’s weight?
- A. 10mL
- B. 15mL
- C. 7.5mL
- D. 5mL
Correct answer: A
Rationale: To calculate the dose for the child weighing 22 pounds, first convert the weight to kg: 22 lbs ÷ 2.2 = 10 kg. The maximum dose based on weight would be 10 kg × 50 mg/kg/24hr = 500 mg/24hr. Since the medication is prescribed every 8 hours, the dose for each administration would be 500 mg ÷ 3 doses = 166.67 mg. As the available suspension is 250mg/5ml, the nurse should administer 166.67 mg ÷ 250 mg/mL = 0.67 mL per dose. However, since it's not practical to administer a fraction of a milliliter, the nurse should round up to the nearest appropriate dose, which is 10mL.
2. A client at 32 weeks gestation is hospitalized with severe pregnancy-induced hypertension (PIH), and magnesium sulfate is prescribed to control the symptoms. Which assessment finding indicates the therapeutic drug level has been achieved?
- A. 4+ reflexes
- B. Urinary output of 50 ml per hour
- C. A decrease in respiratory rate from 24 to 16
- D. A decreased body temperature
Correct answer: C
Rationale: A decrease in respiratory rate from 24 to 16 indicates that magnesium sulfate is effectively reducing central nervous system irritability, a desired therapeutic effect. This decrease in respiratory rate signifies that the drug has reached a therapeutic level to control symptoms of severe pregnancy-induced hypertension. Choices A, B, and D are incorrect because 4+ reflexes, urinary output, and body temperature are not direct indicators of achieving a therapeutic level of magnesium sulfate for controlling PIH symptoms.
3. A woman at 36-weeks' gestation who is Rh negative is admitted to labor and delivery reporting abdominal cramping. She is placed on strict bedrest, and the fetal heart rate and contraction pattern are monitored with an external fetal monitor. The nurse notes a large amount of bright red vaginal bleeding. Which nursing intervention has the highest priority?
- A. Perform a sterile vaginal examination to determine dilatation.
- B. Determine fetal position by performing Leopold maneuvers.
- C. Assess the fetal heart rate and client's contraction pattern.
- D. Confirm Rh and Coombs status for Rho(D) immunoglobulin administration.
Correct answer: C
Rationale: The highest priority nursing intervention in this scenario is to assess the fetal heart rate and the client's contraction pattern. The presence of a large amount of bright red vaginal bleeding in a woman at 36-weeks' gestation who is Rh negative raises concerns about the well-being of the fetus. Monitoring the fetal heart rate and contraction pattern will provide crucial information about fetal status and help determine the appropriate course of action to ensure the safety and health of both the mother and the baby.
4. The LPN/LVN is preparing a client with a term pregnancy who is in active labor for an amniotomy. What equipment should the nurse have available at the client's bedside?
- A. Litmus paper.
- B. Fetal scalp electrode.
- C. A sterile glove.
- D. Needle and Thread
Correct answer: C
Rationale: For performing an amniotomy, the nurse should have a sterile glove to maintain asepsis and an amniotic hook to rupture the amniotic sac. Litmus paper is not required for this procedure, and a fetal scalp electrode is used for fetal monitoring, not for an amniotomy.
5. The parents of a 3-year-old boy with Duchenne muscular dystrophy (DMD) ask, 'How can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide these parents?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family.
- B. The male infant had a viral infection that went unnoticed and untreated, leading to muscle damage.
- C. The lack of the protein dystrophin in the mother can impact the XXX muscle groups of males.
- D. Spinal cord damage due to birth trauma during a breech vaginal birth weakens the muscles.
Correct answer: A
Rationale: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder, meaning the gene mutation causing DMD is located on the X chromosome. Males have one X chromosome and one Y chromosome, so if the X chromosome they inherit from their mother carries the mutated gene, they will develop DMD. Females have two X chromosomes, so they are carriers of the gene but are usually not affected by the disease. Therefore, the nurse should explain to the parents that DMD is an inherited X-linked recessive disorder that primarily affects male children in the family.
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