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. During a prenatal visit, the nurse discusses with a client the effects of smoking on the fetus. When compared with nonsmokers, mothers who smoke during pregnancy tend to produce infants who have
- A. lower Apgar scores.
- B. lower birth weights.
- C. respiratory distress.
- D. a higher rate of congenital anomalies.
Correct answer: B
Rationale: Smoking during pregnancy is associated with intrauterine growth restriction, leading to lower birth weights. This occurs due to the harmful effects of smoking on fetal development, which can result in reduced nutrient and oxygen supply to the fetus, impacting its overall growth and leading to lower birth weights. Choices A, C, and D are incorrect as smoking during pregnancy primarily affects fetal growth and development, leading to lower birth weights rather than lower Apgar scores, respiratory distress, or a higher rate of congenital anomalies.
3. A 6-year-old child is diagnosed with rheumatic fever and demonstrates associated chorea (sudden aimless movements of the arms and legs). Which information should the nurse provide to the parents?
- A. Muscle tension decreases with fine motor skill projects, so these activities should be encouraged.
- B. The chorea or movements are temporary and will eventually disappear.
- C. Permanent lifestyle changes are not needed to promote safety in the home.
- D. Consistent discipline is not directly related to controlling the movements.
Correct answer: B
Rationale: Chorea, or sudden aimless movements associated with rheumatic fever, is temporary in nature and will eventually disappear on its own. It is important for the nurse to reassure the parents that these movements are part of the condition and typically resolve over time without the need for permanent lifestyle changes or strict discipline. Providing accurate information and reassurance to the parents can help alleviate concerns and promote understanding of the condition's course. Choices A, C, and D are incorrect because muscle tension, permanent lifestyle changes, and consistent discipline are not directly related to the resolution of chorea in rheumatic fever.
4. A couple has been trying to conceive for nine months without success. Which information obtained from the clients is most likely to have an impact on the couple's ability to conceive a child?
- A. Both partners have a daily exercise regimen that includes running four miles each morning.
- B. The couple has a history of having sexual intercourse 2 to 3 times per week.
- C. The woman's menstrual period occurs every 35 days.
- D. They use lubricants with each sexual encounter to decrease friction.
Correct answer: D
Rationale: Using lubricants during sexual encounters can potentially impact the couple's ability to conceive a child. Some lubricants may contain substances that are spermicidal or alter the vaginal environment, affecting sperm motility and fertility.
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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