A mother is Rh-negative, and her fetus is Rh-positive. She delivered her first Rh-positive baby without receiving Rho(D) immune globulin. Which complication may occur in a future pregnancy if sensitization has occurred?
Neonatal hypoglycemia
Miscarriage
Fetal macrosomia
Placenta previa
The Correct Answer is B
A. Hypoglycemia in newborns is generally caused by maternal diabetes, preterm birth, intrauterine growth restriction, or perinatal stress. It occurs because the newborn produces excess insulin or has limited glycogen stores. Rh sensitization does not affect glucose metabolism, so neonatal hypoglycemia is unrelated to maternal Rh status.
B. If an Rh-negative mother becomes sensitized after delivering an Rh-positive infant without receiving Rho(D) immune globulin, she can form anti-Rh antibodies. In a future pregnancy with an Rh-positive fetus, these antibodies can cross the placenta and destroy fetal red blood cells, causing hemolytic disease of the newborn (HDN). Severe HDN may lead to fetal anemia, hydrops fetalis, or miscarriage/stillbirth if left untreated.
C. Macrosomia, defined as birth weight >4,000–4,500 g, is typically associated with maternal diabetes, maternal obesity, or genetic predisposition. Rh incompatibility does not influence fetal growth or increase the risk of macrosomia, so it is not a concern in sensitized mothers.
D. Placenta previa occurs when the placenta partially or completely covers the cervical os, which can cause bleeding during pregnancy. Its risk factors include previous cesarean delivery, uterine surgery, multiple gestations, or advanced maternal age, but Rh sensitization has no effect on placental location, so it is unrelated.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.34"]
Explanation
Given:
- Patient weight = 5.6 kg
- Safe dose = 0.03–0.06 mg/kg/day
Step 1: Use the formula for maximum safe dose
Maximum dose = Weight × Maximum mg/kg/day
Step 2: Substitute the values
Maximum dose = 5.6 × 0.06
Step 3: Calculate
Maximum dose = 0.336 mg/day
Step 4: Round to the nearest hundredth
Maximum dose = 0.34 mg/day
Correct Answer is A
Explanation
A. These are classic signs of epiglottitis, a potentially life-threatening condition caused by inflammation and swelling of the epiglottis, usually from Haemophilus influenzae type b. The child often presents suddenly, is toxic-appearing, prefers to sit upright leaning forward (tripod position) to ease breathing, has drooling due to inability to swallow, and may have muffled or hoarse voice. Stridor may develop as airway obstruction worsens. This is a medical emergency.
B. These are symptoms of upper respiratory tract infections, such as the common cold, and are not indicative of epiglottitis, which presents more acutely and severely.
C. Wheezing and cough are more typical of lower airway diseases like croup or bronchiolitis, not epiglottitis. Difficulty swallowing alone is not sufficient without drooling and tripod positioning.
D. These are classic for viral croup, which affects the larynx and trachea. Epiglottitis differs because it progresses rapidly, causes drooling, and children often refuse to lie down.
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
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.