pyloric stenosis

Question 1

pyloric stenosis

Answer 1

Narrowing of pyloric sphincter

Question 2

patho pyloric stenosis

Answer 2

occurs when circular muscle of the pylorus becomes thickened, causing constriction of the pylorus and obstruction of the gastric outlet, d/t hyperplasia and hypertrophy

Question 3

Hyperplasia definition r/t pyloric sentosis

Answer 3

Abnormal cell multiplication
enlargement of organ d/t increase in cell production
(think of increase in amount)

Question 4

Hypertrophy r/t pyloric stenosis

Answer 4

increase in organ d/t increase of size in multiplying cells

Question 5

incidence pyloric stenosis

Answer 5

appears at 1-4 weeks
1st born >
male> female

Question 6

classic s/s

Answer 6

projectile vomiting
constant hunger, fussiness, irritability— dehydration
visible peristalses waves- usually right before vomiting, from LUQ–>RUQ
palpable olive size mass in RUQ

Question 7

Dehydration s/s in infants

Answer 7

few to no tears when crying
decrease urine output…less wet diapers
eyes and fontanelles sunken
poor skin turgor

Question 8

Lab findings pyloric stenosis

Answer 8

increased PH (7.32-7.49 in infants)
increased bicarb
decreased serum chloride (96-106)
decreased sodium 135-145
decreased potassium 3.5-5.2
may see ^^ in H/H d/t dehydration

Question 9

TX pyloric stenosis

Answer 9

pyloromyotomy- incision made along the anterior pylorus to split the muscle
High success rate

Question 10

Complication of pyloromyotomy

Answer 10

persistent pyloric obstruction

wound infection

Question 11

Pre op pyloromyotomy

Answer 11

NPO, restore fluid/electrolytes
I/O urine specific gravity (1.001–1.030)
V.S, ABG, NG tube

Question 12

Post op pyloromyotomy

Answer 12

some vomiting may exist
continue IV fluids until fluids can be given PO
hydration status, pain management

Question 13

What is given prior to surgery

Answer 13

NG tube