ATI RN
Free Pediatric CCRN Practice Questions Questions
Question 1 of 5
Mrs. Zeno asks the nurse why the disease has occurred. The nurse bases the reply on the knowledge that there is:
Correct Answer: C
Rationale: The disease mentioned in the question is likely myasthenia gravis. Myasthenia gravis is an autoimmune disorder where the body's immune system attacks acetylcholine receptors at the neuromuscular junction. Acetylcholine is a neurotransmitter responsible for transmitting nerve impulses to muscles. In myasthenia gravis, the immune system destroys or blocks the acetylcholine receptor sites on muscle cells, leading to a decrease in the number of functioning receptor sites. This results in muscle weakness and fatigue because the communication between nerves and muscles is impaired. This is why the nurse would base the reply on the knowledge that there is a decreased number of functioning acetyl-choline receptor sites as the underlying cause of the disease.
Question 2 of 5
Several types of seizures can occur in the newborn. Which is characteristic of clonic seizures?
Correct Answer: C
Rationale: Clonic seizures are characterized by rhythmic jerking movements, which can be brief and repetitive. These movements are typically observed in the arms and legs. During clonic seizures, the baby may display a pattern of contractions and relaxation of muscle groups, resulting in the jerking motion. This distinguishes clonic seizures from other types of seizures, making it the characteristic feature associated with this particular seizure type in newborns.
Question 3 of 5
Which is the most critical physiologic change required of the newborn?
Correct Answer: D
Rationale: The most critical physiologic change required of the newborn is the onset of breathing. Prior to birth, the fetus receives oxygen from the mother's blood through the placenta. However, once the newborn is delivered, it needs to begin breathing on its own to support oxygen exchange and remove carbon dioxide from the body. The respiratory system must transition from a fluid-filled state in the womb to an air-filled state outside the womb. The onset of breathing is essential for the newborn's survival and initiates the process of oxygenation of tissues and removal of carbon dioxide, which are vital for metabolism and overall physiological functioning. While closure of fetal shunts, stabilization of fluid and electrolytes, and body-temperature maintenance are also important changes that occur in the newborn, the onset of breathing is the most critical to ensure proper oxygenation of the body's tissues.
Question 4 of 5
A child is being admitted to the intensive care unit (ICU) and the parents are with the child. Which creates stressors for children and parents in ICUs? (Select all that apply.)
Correct Answer: A
Rationale: Equipment noise: The noises from medical equipment in the ICU can be loud and continuous, creating a stressful environment for both children and parents. This constant noise can be overwhelming and contribute to feelings of anxiety.
Question 5 of 5
Which refers to a newborn whose rate of intrauterine growth was slowed and whose birth weight falls below the 10th percentile on intrauterine growth charts?
Correct Answer: D
Rationale: A newborn who is small for gestational age (SGA) refers to a baby whose rate of intrauterine growth was slowed, leading to a birth weight falling below the 10th percentile on intrauterine growth charts. SGA infants are at an increased risk for various health complications due to their smaller size at birth, such as difficulties in regulating body temperature, low blood sugar, and respiratory distress. Postterm refers to a pregnancy that has extended beyond 42 weeks, while postmature refers specifically to a fetus that has been in the womb beyond the expected due date. Low birth weight may refer to a baby born below a certain weight threshold regardless of gestational age.