HESI PN Exam Maternity and Pediatric Content Breakdown

Exam Tip: Since Antepartum and Postpartum combined make up 30% of the exam, do not neglect the "bookends" of pregnancy. A strong grasp of prenatal nutrition and postpartum recovery can significantly boost your score.

The Pediatric Component: Navigating Body Systems

Unlike the maternity section, the Pediatric portion is highly fragmented. It requires you to apply nursing principles across various developmental stages and physiological systems.

Major Pediatric Focus Areas

To maximize efficiency, start with the two largest pediatric categories:

• Growth & Development (8%): This is a cornerstone of pediatric nursing. You must understand milestones (physical, cognitive, and psychosocial) for different age groups.
• Gastrointestinal (GI) (8%): Focus on common pediatric issues such as dehydration, congenital defects, and nutritional requirements.

The Respiratory system is also a significant player, accounting for 6% of the exam. Given that respiratory distress is a common pediatric emergency, this is a high-yield area for clinical application.

System-Specific Knowledge (4% Categories)

Several systems are weighted equally at 4% each. While they are smaller than the categories above, they are numerous and require a broad knowledge base:

• Cardiovascular
• Hematology/Oncology
• Musculoskeletal
• Neurological
• Renal/Urinary

Specialized Pediatric Systems (2% Categories)

The remaining topics are smaller focus areas, each representing 2% of the exam:

• Endocrine
• Integumentary
• Sensory

The Math Component

Regardless of your nursing expertise, the HESI PN exam includes a Math component that constitutes 4% of the total items. In a maternity and pediatric context, this often involves calculating medication dosages based on weight (mg/kg) or determining fluid infusion rates for pediatric patients.

Worked Example: Pediatric Dosage Calculation

A pediatric patient weighs $20\text{ kg}$. The physician orders a medication at a dosage of $5\text{ mg/kg}$. How many milligrams should the nurse administer?

To solve this, use the following formula: $\text{Total Dose} = \text{Weight (kg)} \cdot \text{Dosage (mg/kg)}$

$\text{Total Dose} = 20\text{ kg} \cdot 5\text{ mg/kg}$

$\text{Total Dose} = 100\text{ mg}$

Summary Table of Exam Content

For quick reference during your study planning, use the breakdown below to visualize the exam structure:

By categorizing your study time according to these percentages, you can ensure that you are spending the most energy on the topics that have the greatest impact on your final score.