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All Blogs related to the AACN Pediatric, Acute/Critical Care Nursing Certification Exam

AACN Pediatric, Acute/Critical Care Nursing Certification - Blogs Sample Questions

You are doing a well-child check on a 4-year old. Her vision is around 20/40. The medical assistant voices concern to you. What does the Pediatric CCRN know that will reassure this assistant or a parent with concern?

Correct Answer:
this child's vision is normal for her age.


when assessing the vision of a 4-year-old child in a clinical setting, it is important to have an understanding of the normal developmental progression of visual acuity in children. at the age of 4 years, a visual acuity of 20/40 is considered normal and typically does not indicate any abnormality in visual development. this understanding can provide reassurance to both medical professionals and parents who might be concerned about the child's vision.

visual acuity in children improves as they grow older. for instance, a 3-year-old child typically has a visual acuity of about 20/50. by the age of 4, this improves to approximately 20/40. as the child reaches 5 years old, the expected visual acuity sharpens further to around 20/30. it is not until around the age of 6 years that most children achieve a visual acuity of 20/20, which is considered the norm for adults. these milestones provide a guideline for pediatricians and other healthcare providers to monitor the normal visual development in children.

it is crucial for healthcare providers to conduct regular vision screenings starting from the age of 3 years if the child is cooperative. these screenings help in early identification of any potential vision problems that may require intervention. however, in the case of a 4-year-old with a vision of 20/40, there is typically no cause for concern as this is within the normal range for their age group.

in conclusion, a 4-year-old child with a visual acuity of 20/40 is exhibiting normal visual development. this information should reassure the medical assistant and any concerned parents. continuous monitoring and regular vision screenings should be maintained to ensure that the child’s vision develops as expected, potentially reaching the standard adult visual acuity of 20/20 by the age of 6 years.

When evaluating the 8 year old female asthma patient that is experiencing an early stage asthma attack, the pediatric CCRN should know that which of the following results would more than likely be seen on their ABG results?

Correct Answer:
a low paco2
when assessing an 8-year-old female experiencing an early stage asthma attack, it is crucial for the pediatric ccrn (critical care registered nurse) to interpret arterial blood gas (abg) results accurately to manage and monitor the patient effectively. in such scenarios, understanding the typical abg changes during different stages of an asthma attack is essential.

in the early stages of an asthma attack, the patient's respiratory system responds by increasing the rate and depth of breathing in an effort to maintain adequate oxygenation and carbon dioxide elimination. this heightened respiratory effort typically leads to hyperventilation. hyperventilation is the body's reflex response to maintain oxygen supply to tissues and organs and to mitigate the effects of narrowed airways, which are characteristic of asthma.

due to hyperventilation, the abg results of a patient in the early stages of an asthma attack often show a lower than normal partial pressure of carbon dioxide (paco2). this is because the lungs expel more carbon dioxide in an attempt to enhance airflow. a low paco2 is indicative of respiratory alkalosis, where there is too little carbon dioxide in the blood relative to the amount of bicarbonate present.

as a result, the abg will likely reveal: - a low paco2: typically less than 35 mmhg, reflecting the increased removal of co2 due to hyperventilation. - an elevated ph: a ph greater than 7.40, showing that the blood has become more alkaline due to the decreased presence of carbonic acid (which forms when carbon dioxide dissolves in blood).

it is important to note that as the asthma attack progresses, if the patient's condition worsens and they are unable to maintain effective ventilation, the abg results may shift. the patient might start to retain co2 due to exhaustion or worsening airway obstruction, leading to a scenario where paco2 normalizes or even rises, and ph may return to normal or become acidic. this progression can signify an impending respiratory failure and requires immediate intervention.

therefore, in the context of an early stage asthma attack in a pediatric patient, the ccrn should anticipate seeing a low paco2 on the abg results, indicating hyperventilation as the body's initial response to the respiratory distress caused by asthma. monitoring these changes and understanding their implications for patient management are crucial in preventing further deterioration of the patient's respiratory status.

Additional Blogs for AACN - American Association of Colleges of Nursing dfgdfgdfg

In your journey to get AACN Pediatric, Acute/Critical Care Nursing Certification certified it is important for you to have all information related to your exam. So we have pulled together a list of additional blogs that may be of interest to you because that are all related to the American Association of Colleges of Nursing.

Exam Edge Blogs for AACN - American Association of Colleges of Nursing