EXAM 300 ACTUAL QUESTIONS AND
CORRECT ANSWERS WITH RATIONALE
LATEST UPDATE ALREADY GRADED A+
ASSURED PASS
Section 1: Systematic Approach to Pediatric Assessment (Q1–
35)
Q1. The Pediatric Assessment Triangle (PAT) consists of which three
components?
A) Appearance, Work of Breathing, Circulation to Skin
B) Airway, Breathing, Circulation
C) Alertness, Pulse, Respiratory Rate
D) Disability, Exposure, Vital Signs
Answer: A
Rationale: The PAT is a rapid, "from the doorway" assessment tool consisting of
Appearance, Work of Breathing, and Circulation to Skin. It is used to form a
general impression of the child's condition before touching the patient. Two
abnormal vertices indicate urgent assessment, and three abnormal vertices indicate
resuscitation is in progress.
Q2. A 3-year-old child presents with lethargy, increased work of breathing, and
pale color. The primary assessment reveals the airway is open, respiratory rate is
30/min with crackles, heart rate is 165/min, and SpO₂ is 95%. Which best
interprets the SpO₂ reading?
A) Reliable; no supplementary oxygen is indicated
,B) Reliable; supplementary oxygen should be administered
C) Unreliable; no supplementary oxygen is indicated
D) Unreliable; supplementary oxygen should be administered
Answer: D
Rationale: The pulse oximeter displays a pulse rate of 93/min, which does not
match the cardiac monitor rate of 165/min. This discrepancy indicates the SpO₂
reading is unreliable. Regardless, supplementary oxygen should be administered
given the child's increased work of breathing and abnormal appearance.
Q3. What is the most likely cause of head bobbing in infants?
A) Increased respiratory effort
B) Improving respiratory status
C) Decompensated shock
D) Brain injury
Answer: A
Rationale: Head bobbing in infants is a sign of increased respiratory effort. The
infant uses accessory neck muscles to assist with breathing, causing the head to
bob with each breath. This is a sign of respiratory distress.
Q4. Which of the following conditions is appropriate for use of an oropharyngeal
airway?
A) Conscious with no gag reflex
B) Unconscious with a gag reflex
C) Unconscious with no gag reflex
D) Conscious with a gag reflex
Answer: C
Rationale: An oropharyngeal airway (OPA) is appropriate for an unconscious
patient with no gag reflex. If a gag reflex is present, an OPA may stimulate
vomiting and aspiration. A nasopharyngeal airway (NPA) is preferred for patients
with a gag reflex.
Q5. Several healthcare providers are participating in a resuscitation. Which is most
consistent with the responsibilities of the team leader?
A) Records medications and interventions
,B) Assigns roles to team members
C) Administers defibrillation shocks
D) Provides compressions
Answer: B
Rationale: The team leader is responsible for assigning roles, monitoring the
overall resuscitation effort, and ensuring high-quality CPR. Recording,
defibrillation, and compressions are delegated to other team members.
Q6. What is the normal respiratory rate for an infant (0–12 months)?
A) 20–30 breaths/min
B) 30–60 breaths/min
C) 12–20 breaths/min
D) 60–80 breaths/min
Answer: B
Rationale: The normal respiratory rate for an infant is 30–60 breaths/min.
Tachypnea is a common early sign of respiratory distress in infants.
Q7. What is the normal heart rate for a child 1–3 years old?
A) 60–100 beats/min
B) 80–120 beats/min
C) 100–150 beats/min
D) 120–180 beats/min
Answer: C
Rationale: The normal heart rate for a child 1–3 years old is 100–150 beats/min.
Tachycardia is often the first sign of shock in children.
Q8. Hypotension in a child is defined as systolic blood pressure below which
percentile?
A) 5th percentile for age
B) 10th percentile for age
C) 50th percentile for age
D) 90th percentile for age
Answer: A
, Rationale: Hypotension in a child is defined as systolic blood pressure below the
5th percentile for age. Hypotension is a late sign of shock in children because
compensatory mechanisms maintain blood pressure until decompensation occurs.
Q9. What is the formula for estimating systolic blood pressure in children 1–10
years old?
A) 70 + (2 × age in years)
B) 80 + (2 × age in years)
C) 90 + (2 × age in years)
D) 100 + (2 × age in years)
Answer: C
Rationale: The formula for estimating the lower limit of normal systolic blood
pressure in children 1–10 years old is 70 + (2 × age in years). For example, a 5-
year-old's lower limit is 70 + (2 × 5) = 80 mm Hg.
Q10. A 5-year-old child has a systolic blood pressure of 76 mm Hg. This is best
described as:
A) Normal for age
B) Elevated for age
C) Hypotensive for age
D) Hypertensive for age
Answer: C
Rationale: The lower limit of normal systolic BP for a 5-year-old is 70 + (2 × 5) =
80 mm Hg. A systolic BP of 76 mm Hg is below this threshold and indicates
hypotension.
Q11. Which of the following is a sign of compensated shock in a child?
A) Hypotension
B) Tachycardia with prolonged capillary refill
C) Bradycardia
D) Unresponsiveness
Answer: B