RN PEDIATRIC NURSING 2026 | RN PEDIATRIC NURSING FINAL
PROCTORED 2026 EXAM | ATI RN PEDIATRIC NURSING EXAM 1,2,3
& FINAL | LATEST 2026 UPDATED VERSION | 100% VERIFIED
QUESTIONS AND C ORRECT ANSW ERS WITH DETAILED
RATIONALES | GRADED A+ | GUARANTEED PASS | INSTANT
DOWNLOAD!!!!!!!!!
A child with a suspected diagnosis of intussusception is scheduled for a diagnostic
imaging study. Which of the following findings on an ultrasound would be most
consistent with this condition, and what is the primary physiological consequence
that necessitates immediate intervention?
A) Free intraperitoneal fluid indicating perforation; immediate surgical consultation is
required.
B) A "target" or "doughnut" sign representing the invaginated bowel segment; this leads to
compromised blood flow and potential ischemia if not reduced.
C) Dilated loops of bowel proximal to a transition point; this indicates a mechanical
obstruction that will resolve with conservative management.
D) Increased echogenicity of the bowel wall; this is a sign of viral gastroenteritis and
requires only supportive care.
Rationale: The "target" or "doughnut" sign on ultrasound is pathognomonic for
intussusception, where a segment of bowel telescopes into an adjacent segment. This
invagination compromises the mesenteric blood supply, leading to venous congestion,
edema, and ultimately arterial ischemia and necrosis. Prompt reduction, typically via air or
contrast enema, is essential to prevent perforation and peritonitis. Free fluid may be
present but is not the primary diagnostic hallmark. Dilated loops and a transition point are
more indicative of other obstructions like volvulus or adhesions.
A 4-month-old infant presents with a history of forceful, projectile vomiting that
occurs immediately after feeding. On physical examination, a small, mobile, olive-
shaped mass is palpated in the right upper quadrant. Based on the most likely
diagnosis, which of the following metabolic derangements is the infant at highest risk
for developing, and what is the primary mechanism?
A) Metabolic acidosis due to loss of bicarbonate-rich gastric fluid.
B) Metabolic alkalosis due to loss of hydrochloric acid and subsequent hypokalemia.
C) Hypernatremia due to concentrated formula feedings causing a high solute load.
D) Hypoglycemia due to inadequate carbohydrate absorption from frequent vomiting.
,Rationale: The presentation is classic for pyloric stenosis, characterized by hypertrophy of
the pyloric muscle. The projectile vomiting leads to the loss of hydrochloric acid and
potassium from the stomach, resulting in a hypochloremic, hypokalemic metabolic
alkalosis. The kidney attempts to conserve sodium and volume by excreting hydrogen ions,
which paradoxically worsens the alkalosis, and potassium is lost in the urine as the body
retains sodium. This is a "contraction alkalosis" due to the loss of extracellular fluid.
Metabolic acidosis is not typical of this condition.
A school-age child is brought to the emergency department with severe abdominal
pain, vomiting, and a “currant jelly” stool. The nurse anticipates which therapeutic
intervention as the initial treatment of choice for the suspected condition, and what is
the critical nursing action immediately prior to this procedure?
A) Surgical resection of the involved bowel segment; the nurse should prepare the child for
an operating room and ensure informed consent is signed.
B) Administration of intravenous corticosteroids to reduce inflammation; the nurse should
establish two large-bore IV lines.
C) A barium enema for diagnostic confirmation only; the nurse should prepare the child by
administering a clear liquid diet 4 hours prior.
D) An air or hydrostatic enema for reduction; the nurse must ensure the child is adequately
hydrated and has a patent nasogastric tube for decompression.
Rationale: The triad of abdominal pain, vomiting, and currant jelly stools is indicative of
intussusception. The initial treatment is a non-surgical reduction, most commonly with an
air enema or a hydrostatic (saline) enema. Before this procedure, it is crucial that the child
is hemodynamically stable and adequately hydrated, as the procedure can be stressful and
there is a risk of perforation. A nasogastric tube is often placed to decompress the stomach
and prevent vomiting during the procedure. Surgical resection is reserved for failed
reduction or signs of perforation.
An infant with a confirmed diagnosis of hypertrophic pyloric stenosis is scheduled for
a pyloromyotomy. Which of the following preoperative nursing interventions is the
highest priority to prevent a life-threatening complication?
A) Placing the infant in an upright position after feedings to reduce reflux.
B) Monitoring the infant's weight daily to assess for failure to thrive.
C) Administering IV fluids containing potassium to correct electrolyte imbalances before
surgery.
D) Educating the parents about the surgical procedure and providing emotional support.
, Rationale: The infant with pyloric stenosis is in a state of hypochloremic, hypokalemic
metabolic alkalosis due to the loss of gastric contents. The most critical preoperative
intervention is the correction of these fluid and electrolyte imbalances with IV fluids,
typically normal saline with potassium added, once renal function is confirmed. Alkalotic
infants are at high risk for postoperative apnea and other complications if the imbalances
are not corrected. Surgery is delayed until the electrolyte levels are normalized.
A child with a suspected diagnosis of acute appendicitis is being evaluated. The nurse
knows that which of the following assessment findings is most concerning for the
development of peritonitis and perforation?
A) Rebound tenderness in the right lower quadrant.
B) A low-grade fever of 100.4°F (38°C).
C) Nausea and vomiting that precedes the onset of pain.
D) Sudden relief of pain followed by a rigid, board-like abdomen.
Rationale: A sudden relief of pain in appendicitis often indicates perforation, as the
pressure within the appendix is released. This is followed by the development of diffuse
peritonitis, which presents as a rigid, board-like abdomen, guarding, and severe pain. This
is a surgical emergency. Rebound tenderness, fever, elevated WBC, nausea, and anorexia
are all classic signs of appendicitis but do not specifically indicate the imminent
complication of perforation and peritonitis in the same way as the sudden pain relief
followed by rigidity does.
A toddler is admitted with severe dehydration secondary to acute gastroenteritis. The
physician orders an IV bolus of normal saline. Which of the following assessment
findings would indicate that the bolus has been effective in improving the child's
circulatory status?
A) A decrease in urine output from 2 mL/kg/hr to 1 mL/kg/hr.
B) An increase in heart rate from 130 to 150 beats per minute.
C) A decrease in the capillary refill time from 4 seconds to 2 seconds.
D) An increase in the child's respiratory rate from 24 to 32 breaths per minute.
Rationale: Effective fluid resuscitation with an IV bolus should improve tissue perfusion. A
capillary refill time of < 2 seconds is a good indicator of improved perfusion. A decrease in
refill time from 4 seconds (prolonged) to 2 seconds (normal) is a positive response. An
increase in heart rate, decrease in urine output, decrease in blood pressure, and increased
respiratory rate are all signs of worsening or uncompensated shock.
PROCTORED 2026 EXAM | ATI RN PEDIATRIC NURSING EXAM 1,2,3
& FINAL | LATEST 2026 UPDATED VERSION | 100% VERIFIED
QUESTIONS AND C ORRECT ANSW ERS WITH DETAILED
RATIONALES | GRADED A+ | GUARANTEED PASS | INSTANT
DOWNLOAD!!!!!!!!!
A child with a suspected diagnosis of intussusception is scheduled for a diagnostic
imaging study. Which of the following findings on an ultrasound would be most
consistent with this condition, and what is the primary physiological consequence
that necessitates immediate intervention?
A) Free intraperitoneal fluid indicating perforation; immediate surgical consultation is
required.
B) A "target" or "doughnut" sign representing the invaginated bowel segment; this leads to
compromised blood flow and potential ischemia if not reduced.
C) Dilated loops of bowel proximal to a transition point; this indicates a mechanical
obstruction that will resolve with conservative management.
D) Increased echogenicity of the bowel wall; this is a sign of viral gastroenteritis and
requires only supportive care.
Rationale: The "target" or "doughnut" sign on ultrasound is pathognomonic for
intussusception, where a segment of bowel telescopes into an adjacent segment. This
invagination compromises the mesenteric blood supply, leading to venous congestion,
edema, and ultimately arterial ischemia and necrosis. Prompt reduction, typically via air or
contrast enema, is essential to prevent perforation and peritonitis. Free fluid may be
present but is not the primary diagnostic hallmark. Dilated loops and a transition point are
more indicative of other obstructions like volvulus or adhesions.
A 4-month-old infant presents with a history of forceful, projectile vomiting that
occurs immediately after feeding. On physical examination, a small, mobile, olive-
shaped mass is palpated in the right upper quadrant. Based on the most likely
diagnosis, which of the following metabolic derangements is the infant at highest risk
for developing, and what is the primary mechanism?
A) Metabolic acidosis due to loss of bicarbonate-rich gastric fluid.
B) Metabolic alkalosis due to loss of hydrochloric acid and subsequent hypokalemia.
C) Hypernatremia due to concentrated formula feedings causing a high solute load.
D) Hypoglycemia due to inadequate carbohydrate absorption from frequent vomiting.
,Rationale: The presentation is classic for pyloric stenosis, characterized by hypertrophy of
the pyloric muscle. The projectile vomiting leads to the loss of hydrochloric acid and
potassium from the stomach, resulting in a hypochloremic, hypokalemic metabolic
alkalosis. The kidney attempts to conserve sodium and volume by excreting hydrogen ions,
which paradoxically worsens the alkalosis, and potassium is lost in the urine as the body
retains sodium. This is a "contraction alkalosis" due to the loss of extracellular fluid.
Metabolic acidosis is not typical of this condition.
A school-age child is brought to the emergency department with severe abdominal
pain, vomiting, and a “currant jelly” stool. The nurse anticipates which therapeutic
intervention as the initial treatment of choice for the suspected condition, and what is
the critical nursing action immediately prior to this procedure?
A) Surgical resection of the involved bowel segment; the nurse should prepare the child for
an operating room and ensure informed consent is signed.
B) Administration of intravenous corticosteroids to reduce inflammation; the nurse should
establish two large-bore IV lines.
C) A barium enema for diagnostic confirmation only; the nurse should prepare the child by
administering a clear liquid diet 4 hours prior.
D) An air or hydrostatic enema for reduction; the nurse must ensure the child is adequately
hydrated and has a patent nasogastric tube for decompression.
Rationale: The triad of abdominal pain, vomiting, and currant jelly stools is indicative of
intussusception. The initial treatment is a non-surgical reduction, most commonly with an
air enema or a hydrostatic (saline) enema. Before this procedure, it is crucial that the child
is hemodynamically stable and adequately hydrated, as the procedure can be stressful and
there is a risk of perforation. A nasogastric tube is often placed to decompress the stomach
and prevent vomiting during the procedure. Surgical resection is reserved for failed
reduction or signs of perforation.
An infant with a confirmed diagnosis of hypertrophic pyloric stenosis is scheduled for
a pyloromyotomy. Which of the following preoperative nursing interventions is the
highest priority to prevent a life-threatening complication?
A) Placing the infant in an upright position after feedings to reduce reflux.
B) Monitoring the infant's weight daily to assess for failure to thrive.
C) Administering IV fluids containing potassium to correct electrolyte imbalances before
surgery.
D) Educating the parents about the surgical procedure and providing emotional support.
, Rationale: The infant with pyloric stenosis is in a state of hypochloremic, hypokalemic
metabolic alkalosis due to the loss of gastric contents. The most critical preoperative
intervention is the correction of these fluid and electrolyte imbalances with IV fluids,
typically normal saline with potassium added, once renal function is confirmed. Alkalotic
infants are at high risk for postoperative apnea and other complications if the imbalances
are not corrected. Surgery is delayed until the electrolyte levels are normalized.
A child with a suspected diagnosis of acute appendicitis is being evaluated. The nurse
knows that which of the following assessment findings is most concerning for the
development of peritonitis and perforation?
A) Rebound tenderness in the right lower quadrant.
B) A low-grade fever of 100.4°F (38°C).
C) Nausea and vomiting that precedes the onset of pain.
D) Sudden relief of pain followed by a rigid, board-like abdomen.
Rationale: A sudden relief of pain in appendicitis often indicates perforation, as the
pressure within the appendix is released. This is followed by the development of diffuse
peritonitis, which presents as a rigid, board-like abdomen, guarding, and severe pain. This
is a surgical emergency. Rebound tenderness, fever, elevated WBC, nausea, and anorexia
are all classic signs of appendicitis but do not specifically indicate the imminent
complication of perforation and peritonitis in the same way as the sudden pain relief
followed by rigidity does.
A toddler is admitted with severe dehydration secondary to acute gastroenteritis. The
physician orders an IV bolus of normal saline. Which of the following assessment
findings would indicate that the bolus has been effective in improving the child's
circulatory status?
A) A decrease in urine output from 2 mL/kg/hr to 1 mL/kg/hr.
B) An increase in heart rate from 130 to 150 beats per minute.
C) A decrease in the capillary refill time from 4 seconds to 2 seconds.
D) An increase in the child's respiratory rate from 24 to 32 breaths per minute.
Rationale: Effective fluid resuscitation with an IV bolus should improve tissue perfusion. A
capillary refill time of < 2 seconds is a good indicator of improved perfusion. A decrease in
refill time from 4 seconds (prolonged) to 2 seconds (normal) is a positive response. An
increase in heart rate, decrease in urine output, decrease in blood pressure, and increased
respiratory rate are all signs of worsening or uncompensated shock.
