Exam 2- Endocrine, Gi, GU, Cardiac Flashcards
precocious puberty
manifestation of sexual development before 9 in girls and before 8 in boys; resulting from hypothalamic pituitary gonadal axis being activated early; monitor for growth; refer to endocrinologist; 50% of cases stop or regress without treatment
physiology of precocious pubery in boys
activation of hypothalamic pituitary gonadal axis causes interstitial cell stimulating hormone leydig cells of testes to secrete testosterone
physiology of precocious puberty in girls
hypothalamic pituitary gonadal axis activation causes follicle stimulating hormone (FSH) and luteneizing hormone (LH) to stimulate ovarian follicles to secrete estrogens
why refer to endocrinologist for precocious puberty
MRI to assess for brain tumor
treatment of precocious puberty
IM inections that decrease stimulation of LH and FSH
nursing considerations/teaching for precocious puberty
provide anticipatory guidance, support, and education about fertility and medications; fertility begins earlier; sexual interest does not necessarily begin earlier due to being chronological; birth control not advised as it cans stunt growth
central precocious puberty
more commonly affects girls; 95% of cases have no cause; 75% of cases in boys have underlying CNS defect/structural abnormality
peripheral precocious puberty
clinical findings of puberty appear sooner; premature thelarche (breast development), premature pubarche (pubic hair), premature menarche
diabetes insipidus
central or neurogenic result from under secretion of ADH principally caused by hypofunction of posterior pituitary; leads to large volumes of dilute urine; need to rule out intracranial lesion; dehydration is not issue in older adult/children who can keep up with drinking
treatment of diabetes insipidus
DDAVP to help create ADH
first signs of DI in children
irritability that is relieved by water not milk; at risk for electrolyte imbalance, severe dehydration; vomiting, constipation, fiver, sleep issues, failure to thrive, growth problems
testing for DI in children
fluid restriction; normally urine would concentrate and decrease in amount but in DI it is not affected
why give DDAVP
given BID at bedtime to allow child to sleep through night and in morning for fewer interruptions in school; overmedication results in SIADH
causes of DI
familial (idiopathic) is 20-50% of cases; secondary causes from trauma, tumor, infection, autoimmune, cranial and vascular anomalies
cardinal signs of DI
polyuria and polydipsia
SIADH
results from over secretion of ADH leading to fluid retention and hyponatremia; more common in conditions that disrupt CNS function like infections, tumors, or surgery
sodium decreasing below 120mEq/L from SIADH
manifestations of anorexia, nausea, vomiting, stomach cramps, irritability, personality changes; further progression causes neurological changes like seizures and stupor
treatment of SIADH
fluid restriction and sodium supplementation
what happens as result of rapid hyponatremia
leads to swelling of the brain
hypothyroidism in children
deficiency in secretion of thyroid hormone TH; low T3/T4 and high TSH; most common endocrine problem in children
congenital hypothyroidism
detected on NBS; if untreatable or undetected then can lead to mental retardation; not associated with intellectual disability or neurological in juvenile d/t brain growth complete
treatment of hypothyroidism
thyroid replacement hormone (levothyroxine)
manifestations of hypothyroidism
dry skin, puffiness around eyes, sparse hair, constipation, sleepiness, lethargy, mental decline, growth failure, delayed puberty, excessive weight gain
hyperthyroidism in children
excessive secretion of thyroid hormone (TH); Low TSH and high T3/T4; commonly caused by graves disease; peak incidence 12-14; females more affected than men; onset to diagnosis ~ 6 months
treatment of hyperthyroidism
antithyroid drugs, subtotal thyroidectomy, ablation with radioiodine; controversial in kids; symptoms often interfere with daily life until under control
manifestations of hyperthyroidism
irritability, hyperactivity, short attention span, tremors, insomnia, emotional lability, gradual weight loss with voracious appetite, exophthalmos
acute adrenal insufficiency
aka adrenal crisis; destruction or dysfunction of adrenal glands; failure to increase hormones during stress; congenital adrenal hyperplasia and addisons disease
symptoms of acute adrenal insufficiency
earl- increased irritability, headache, diffuse abdominal pain, weakness, nausea/vomiting, diarrhea, low Na, high K; worsening- fever, CNS involvement like nuchal rigidity, convulsions, stupor, coma, shock
newborn symptoms of acute adrenal insufficiency
extremely high temps, tachypnea, cyanosis, seizures
shock symptoms in acute adrenal insufficiency
rapid pulse, decreased BP, shallow respirations, cold clammy skin, cyanosis
causes of acute adrenal insufficiency
hemorrhage into gland from trauma from prolonged difficult labor, rapidly progressing infections (meningitis)
waterhouse friderichsen
hemorrhage and necrosis of adrenal gland
nursing care of acute adrenal insufficiency
early recognition is key; admin steroids, IV rescus for hypovolemia and dehydration, dextrose for hypoglycemia, antibx for infection, seizure precautions, whole blood transfusion if hemorrhage is bad, vasoconstrictors, VS frequently
diagnosing acute adrenal insufficiency
no rapid definitive test but made based on clinical presentation
type I diabetes
complete destruction of pancreatic beta cells that produce insulin leading to total insulin deficiency; 5-8% of all diabetics; age of onset usually under 20yrs; affects males more than females
clinical manifestations of type I diabetes
polyphagia, polyuria, polydipsia, weight loss, enuresis/nocturia, irritability, shortened attention span, lowered frustration tolerance, dry skin, fatigue, blurry vision, flushed skin, headache, frequent infections, hyperglycemia
signs of hyperglycemia
hot and dry sugar too high; excessive hunger, excessive thirst, weakness or fatigue, frequent urination, blurry vision, dry skin, sores not healing properly, nausea, sleepiness after eating
signs of hypoglycemia
hunger, shaking or tremors, sweating, dizziness, fast heartrate, anxiety, blurred vision, weakness/fatigue, headache, irritability
diagnosing type I diabetes
8 hr fasting glucose >/= 125mg/dL or random BGL of 200mg/dL with classic signs of DM or oral glucose tolerance test (OGTT) of 200mg/dL or more in 2 hour sample or hemoglobin A1C of 6.5% or more
management of type I diabetes
maintain near-normal levels of glucose while avoiding hypoglycemia; replacement of insulin, nutritional needs
types of insulin
rapid acting- novolog, onset 15 min, peak 60-90 min; short acting- novolin R, onset 30 min, peak 2-4 hours; intermediate- novolin N, onset 2-4 hrs, peak 4-14 hrs; long acting- lantus, onset 6-14 hrs, no true peak but lasts 22-24 hrs; can be given via injections or via insulin pump
nutritional management of type I diabetes
balance of carbs, fats, protein; extra food during exercise; timing to prevent hypoglycemia; avoid high sugar high carb to prevent hyperglycemia; increase insulin when eating and decrease during exercise
DKA
insulin absent causing unavailable glucose to cells leading to breakdown of fat into fatty acids that liver converts to ketone bodies; causes acidosis (fall in plasma pH); ketonuria and acetone breath (elmin. by lungs); risk for electrolyte imbalances; can lead to coma, death, seizures, cardiac abnormalities if not corrected with insulin
clinical manifestations of DKA
thirst, frequent urination, nausea, abdominal pain, weakness, fruity scented breath, confusion
management of DKA
rapid assessment, adequate insulin, fluids to avoid dehydration, electrolyte replacement (potassium)
nursing care of DKA
IV access for fluids, insulin drip, and electrolyte; supportive care; O2 if arterial < 80; NG if unconscious to prevent asp.; foley to monitor urine output; antibiotics if septic; cardiac monitoring due to electrolyte imbalances
kids manifestation of DKA
dehydration (need rehydration via IV); obtain urine ketones and blood glucose prior to insulin
insulin during DKA
continuous regular IV insulin given at dosage of 0.1U/kg/hr; want to decrease BG by 50 - 100 mg/dL/hr; once below 250-300 mg/dL then dextrose is added to fluid and goal is to maintain level of 120-240 mg/dL with 5 or 10% added dextrose
sodium bicarbonate use during DKA
used conservatively like pH < 7.0, severe hyperkalemia, or cardiac instability; causes increased risk for cerebral edema
Urinary Tract Infections
common but can pose serious problems in children; bacteria spreads up the urethra; more common in females d/t short urethra; more common in uncircumsized men <3 mo; spike around toilet training times due to dysfunctional voiding; sexually active females have increased incidence
most common cause of UTI
E. coli from the GI tract
symptoms of UTI in children > 2 yrs
dysuria, enuresis, day tie incontinence in toilet trained individuals, fever, increased frequency and urgency, foul smell, hematuria and vomiting can be present
symptoms of UTI in older children or adolescents
cystitis: frequency, painful urination, hematuria without fever; pyelonephritis: fever, chills, flank pain in addition to lower urinary tract symptoms
cystitis
inflammation or infection of the bladder (lower urinary tract); if suspected tha obtai UA and Ucx
pyelonephritis
infection or inflammation of upper urinary tract like the ureters and kidneys that is associated with high grade fever; likely to have high fever, chills, flank pain, severe abdominal pain, leukocytosis; can result in scarring and decreased renal function
WNL findings of urine analysis
yellow, clear/transparent, specific gravity of 1.01-1.030, pH 4.5-8.0
obtaining a urine culture is…
sterile procedure that may require straight cath if child is unable to keep sterile
renal labs
Blood urea nitrogen (BUN)- newborn is 4-18, child is 5-18; creatinine infant is 0.2-0.4, child is 0.3-0.7, adolescent is 0.5-1.0; uric acid child is 2.0-5.5
Nursing management of UTI
antibiotics PO if lower tract infection but IV likely for pyelonephritis; watch for allergic reaction; educate importance of antibiotic adherence; renal bladder ultrasound may be used to assess anatomy; referral to urologist if frequently developing UTI and they are hard to treat
nursing considerations for UTI prevention
educate on s/s of UTI in children; encourage toilet good toilet habits; frequent voiding; encourage emptying bladder completely by double voiding; fluid intake to avoid urinary stasis and constipation; avoid caffeinated/carbonated beverages; wipe from front to back; encourage void after intercourse; cotton underwear
vesicoureteral reflux (VUR)
primary results from congenital anomaly at ureterovesical junction where the antireflux mechanism does not work; secondary results from high pressure in bladder; increased risk for developing pyelonephritis; diagnosed with radionuclide cystogram (RNC) and voiding cystourethrogram (VCUG)
treatment of VUR
if known VUR then should be catheterized or able to obtain clean void, antibiotics like bactrim or trimethoprim but amoxicillin if under 2 mo, monitor children; surgical treatment with ureteral reimplant, cystoscopy for bulking agent
testicular torsion
abnormal twisting of the spermatic cord and associated blood vessels that decreased blood supply to affected testicle and causes necrosis
symptoms of testicular torsion
sudden sevree scrotal and lower abdominal pain on affected side, erythema or discoloration of scrotum, one testicle sits higher, waxing and waning pain, lack of blood flow on US; need to be taken to OR within 6-8 hours
phimosis
when foreskin cannot be retracted over the glans penis; physiological- due to normal adhesions of foreskin to glans; common in male children up to 3 yrs; does not require surgical correction; god hygiene; pathological- d/t scar tissue formation that prevents retraction; requires correction and potentially circumcision
cryptorchidism
when one or both testicles fail to descend form the abdomen ino the scrotum; can be retractile- able to be brought back into correct location, undescended- testicle is present but not in scrotum, or absent- due to abnormal development or intrauterine torsion
orchidoplexy
surgical repair of cryptorchidism if not descended by 1 year; increased risk of cancer in undescended testicles
hypospadias
abnormal location of the urethral meatus on the underside of the penis; no circumcision immediately if noted because skin used during surgical repair
nephrotic syndrome
alterations in the glomerular membrane that allow for proteins (albumin) to pass into urine resulting in decreased serum osmotic pressure; most common presentation of glomerular injury in children; peak incidence is 2-3 years; unknown causea
characteristics of nephrotic syndrome
proteinuria, hypoalbuminemia, hyperlipidemia, edema, massive urinary protein loss, ascites, hypovolemia, fluid shift from vasculature to interstitial spaces
nephrotic syndrome clinical manifestations
previously well child begins to gain weight, periorbital edema on waking but resolves throughout day, diarrhea, loss of appetite, generalized edema, poor intestinal absorption, decreased urine volume, frothy urine, pallor, irritability, lethargy, blood pressure is normal or slightly decreased
nursing ocnsiderations for nephrotic syndrome
supportive care, strict I/O, VS, daily weights, abdominal girth, monitor for skin breakdown d/t edema, monitor and prevent infection, fluid restriction, sodium restriction, steroids (prednisone), immunosuppressant therapy, diuretics and albumin replacement
acute poststreptococcal glomerulonephritis (APSG)
number of diseases that involve common features of oliguria (low UOP), edema, HTN, circulatory congestion, hematuria, and proteinuria; antibody-antigen disease that results from certain group a beta-hemolytic streptococcal infections; onset 1-2 weeks following strep infection of throat and 3-6 weeks after infection of skin
APSG patho
strep infection occurs and is followed by release of membrane like material from strep organism into circulation; immune complex forms and gets trapped in kidney causing swelling and inflammation; decreases plasma filtration and increases sodium retention