Exam 4 Flashcards
Etiology and Pathophysiology of UTI
Mostly caused by E. coli
Urinary stasis can contribute to development
Stasis may be caused by abnormal anatomical structures or abnormal function (e.g. neurogenic bladder)
Clinical Manifestations of UTI
Many are asymptomatic and discovered accidentally on routine examination
Bladder Exstrophy
Rare congenital defect in which the posterior bladder wall extrudes through the lower abdominal wall
Corrected with surgical reconstruction
Obstructive Uropathy
Structural or functional abnormalities of the urinary system that interfere with urine flow and result in urine backflow into the kidneys
Often causes hydronephrosis
Early diagnosis and treatment prevents kidney damage and deterioration of kidney function
Vesicoureteral Reflux
Retrograde flow of urine from the bladder into the ureters
Creates a reservoir for bacterial growth
Recurrent infection within 1-2 months
Culture and sensitivity every 2-3 months
Prune Belly Syndrome
Congenital defect characterized by failure of the abdominal musculature to develop
Primary Enuresis
Child has never had a dry night; attributed to maturational delay and small functional bladder
Not associated with stress or psychiatric cause
Secondary Enuresis
Child who has been reliably dry for at least 6 months begins bed-wetting
Associated with stress, infections, and sleep disorders
Milestones in the Development of Bladder Control
1.5 years: child passes urine at regular intervals
2 years: child announces when voiding is taking place
2.5 years: child makes known the need to void; can hold urine
3 years: child goes to the bathroom alone; holds urge if preoccupied with play
2.5-3.5 years: child achieves nighttime control
4 years: child shows great interest in going to bathrooms when away from home
5 years: child voids approximately 5-6 times per day; prefers privacy; is able to initiate emptying of bladder at any degree of fullness
Nephrotic Syndrome
Alteration in kidney function secondary to increased glomerular basement membrane permeability to plasma protein
Characterized by edema, massive proteinuria, hypoalbuminemia, hypoproteinemia, hyperlipidemia, and altered immunity
Acute Postinfectious Glomerulonephritis
Most common inflammation of the glomeruli of the kidneys
Many children are asymptomatic
Onset usually abrupt with flank or midabdominal pain, irritability, malaise, and fever
Treatment focuses on relief of symptoms and supportive therapy
Acute Renal Failure
Sudden loss of adequate renal function in which the kidneys are unable to clear metabolic wastes and to regulate extracellular fluid volume, sodium balance, and acid-base homeostasis
Causes of Acute Renal Failure
Hemolytic-uremic syndrome, acute glomerulonephritis, sepsis, poisoning, nephrotoxic medications, hypovolemia, obstructive uropathy, and complication of cardiac surgery
Clinical Manifestations and Treatment of Acute Renal Failure
Dark urine or gross hematuria, headache, edema, fatigue, crackles, gallop heart rhythm, hypertension, hematuria, lethargy, nausea and vomiting, oliguria
Treatment depends on the underlying cause of the renal failure
Chronic Renal Failure
Progressive, irreversible reduction in kidney function
Usually results from developmental abnormalities of the kidney or urinary tract, obstructed urine flow and reflux, hereditary diseases such as polycystic kidney disease, infections such as hemolytic-uremic syndrome, and glomerulonephritis
Clinical Manifestations and Treatment of Chronic Renal Failure
Fatigue, malaise, poor appetite, nausea and vomiting, failure to thrive, short stature, oliguria/polyuria, headache, decreased mental alertness/ability to concentrate, chronic anemia, hypertension, edema, fractures with minimal trauma, rickets, valgus deformity
Treatment is dialysis and eventually a kidney replacement
Hemolytic-Uremic Syndrome
Most common cause of acute renal failure in young children
Triad of signs includes hemolytic anemia, thrombocytopenia, and acute renal failure
Treatment focuses on the complications of ARF and includes fluid restrictions and a high-calorie, high-carbohydrate diet that is low in protein, sodium, potassium, and phosphorus
Polycystic Kidney Disease
Genetic disorder that has autosomal recessive and dominant forms
Liver abnormalities are associated with both forms of the disease
Low-set ears, small jaw, and flattened nose
Treatment is supportive
Cryptorchidism
Undescended testes
Congenital defect of the gonads
Surgery may be necessary for correction
Pelvic Inflammatory Disease
Serious infection of the upper genital tract caused by the ascending spread of organisms in the cervix and vagina
Clinical Manifestations and Treatment of Pelvic Inflammatory Disease
Fever, mild/dull bilateral lower abdominal pain, dysmenorrhea, dysuria, vaginal discharge, prolonged or increased menstrual bleeding
Antibiotics used for treatment
Normal BUN
5-18
Normal CRE
- 2-0.4 in infants
0. 3-0.7 in children
Confusion
Disorientation to time, place, or person; loss of clear thinking. Answers to simple questions may be correct, but responses to complex ones may be inaccurate
Delirium
State characterized by disorientation, fear, irritability or agitation, and mental or motor excitement
Lethargy
Profound slumber in which speech and movement are limited. The child is aroused with moderate stimulation, but falls asleep easily once stimulation is removed
Stupor
Deep sleep or unresponsiveness; the child is aroused only with repeated vigorous stimulation, but returns to the unresponsive state when the stimulus is removed
Coma
Unconsciousness; cannot be aroused even by painful stimuli
Caused by pathologic processes (meningitis, trauma, hypoxia, poisoning, seizures, alcohol/substance abuse, endocrine/metabolic disorders, etc.) that cause increased intracranial pressure
Early Signs of Increased Intracranial Pressure
Headache, visual disturbances, diplopia, nausea/vomiting, dizziness/vertigo, slight change in vital signs, pupils not as equal or reactive, sunsetting eyes, slight change in level of consciousness
Late Signs of Increased Intracranial Pressure
Significant decrease in level of consciousness, seizures, fixed and dilated pupils, papilledema
Cushing Triad (increased systolic blood pressure and widened pulse pressure, bradycardia, irregular respirations)
Focal/Partial Seizures
Caused by abnormal electrical activity in one brain hemisphere or a specific area of the cerebral cortex
Generalized Seizures
Result of diffuse electrical activity that begins in both brain hemispheres simultaneously
Febrile Seizures
Occur in susceptible infants and children in connection with a rise in temperature to 102.2
Bacterial Meningitis
Secondary to other infections such as otitis media, sinusitis, pharyngitis, cellulitis, pneumonia, or septic arthritis; brain trauma; or a neurosurgical procedure
Brain becomes inflamed and edematous, leading to cerebral edema
Clinical Manifestations of Bacterial Meningitis
Febrile, altered consciousness, vomiting, complaints of muscle/joint pain, headache, photophobia, esotropia, nuchal rigidity
Viral Meningitis
Inflammatory response of the meninges characterized by an increased number of blood cells and protein in the CSF
Clinical Manifestations of Viral Meningitis
Abrupt onset of fever, headache, photophobia, stiff neck, back pain, myalgia, irritability, lethargy
Encephalitis
Acute inflammation of the brain often caused by an arbovirus that is transmitted by a mosquito
Clinical Manifestations of Encephalitis
Fever, irritability, severe headache, bulging fontanelle, altered mental status
Flaccid or spastic paralysis
At risk for seizures, respiratory failure, and increased ICP and receives supportive treatment in the ICU
Reye Syndrome
Acute encephalopathy caused by drug toxic to the liver or other toxin, metal, or metabolite and results in a poorly functioning organ
Guillain-Barre Syndrome
Acute inflammatory peripheral neuropathy with an acute onset of rapidly developing symmetric motor weakness that progresses in an ascending pattern
Postinfectious disorder that affects motor, sensory, and autonomic neurons
Clinical Manifestations of Reye Syndrome
Cerebral edema, hypoglycemia, and an enlarged liver
Clinical Manifestations of Guillain-Barre Syndrome
Hypotonia, respiratory distress, irritability, feeding difficulties in infants, pain, numbness, paresthesia
Migraine Headaches
May be triggered by stress; foods containing nitrates, glutamate, caffeine, tyramine, and salt; menses; fatigue; and hunger
Tension Headaches
Associated with stress related to school, anxiety, demanding schedules, fasting, and inadequate sleep
Medication Overuse/Rebound Headaches
Associated with the frequent use of medications for headaches
Microcephaly
Small brain with a head circumference below the third percentile on growth curves
May be caused by genetic disorder or destructive insult during infancy such as an infection, metabolic disorder, or hypoxia-ischemia
Intellectual disability is common
Hydrocephalus
Body’s response to an imbalance between the volume of CSF produced and absorbed
May be congenital or acquired as a result of intraventricular hemorrhage, meningitis, traumatic brain injury, or brain tumor
Clinical Manifestations of Hydrocephalus
Increased head circumference, irritability, vomiting, poor appetite, disordered sleep, fever
Anencephaly
No development of the brain above the brainstem, which is ultimately fatal
Encephalocoele
Protrusion of meningeal tissue or meninges-covered brain through a defect in the skull
Spina Bifida Occulta
A vertebral defect in which the posterior vertebral arches fail to fuse, but the spinal cord and meninges are contained in the vertebral canal
Spina Bifida Cystica
A posterior vertebral arch defect with protrusion of meninges through the bony spine
Meningocoele
Protrusion of a meningeal sac filled with CSF through a vertebral defect, associated with no abnormalities of the spinal cord
Myelodysplasia
Protrusion of a meningeal sac that contains CSF, a portion of the spinal cord, and nerves through a vertebral defect
Etiology of Myelodysplasia/Spina Bifida
Chemicals, medications, genetic factors, and maternal health conditions
Clinical Manifestations of Myelodysplasia
Thoracic Level: paralysis of the legs, weakness and sensory loss in the trunk and lower body region
Lumbar 1-2 Level: some hip flexion and adduction, cannot extend knees
Lumbar 3 Level: can flex hips and extend the knees; paralyzed ankles and toes
Lumbar 4-5 Level: can flex hips and extend the knees; weak or absent ankle extension, toe flexion, and hip extension
Sacral Level: mild weakness in the ankles and toes
Bowel and bladder incontinence occurs with all except sacral
Mobility problems, intellectual disability, and visual impairment
Craniosynostosis
Premature closure of cranial sutures in utero or during the first 18 months of life
Positional Plagiocephaly
An asymmetric flattening of the skull, associated with sleep position to prevent SIDS
Neonatal Abstinence Syndrome
Caused by opioids, CNS stimulants, CNS depressants, antidepressants, and benzodiazepines
Initial signs include irritability, jitteriness, tremors, excessive crying
Other signs include yawning, diarrhea, vomiting, seizures, inconsolable high-pitched crying, difficulty sleeping, hypertonia, and ANS signs
Neurofibromatosis
Autosomal dominant genetic disorder in which tumors grow along nerves
Characterized by six or more cafe au lait spots
Pain, vision deficits, precocious puberty, delayed puberty, thinning/bowing of the tibia, fractures that do not heal properly, and scoliosis are all possible signs
Cerebral Palsy
Common syndrome of movement and posture development disorders caused by a nonprogressive lesion abnormality in the fetal or infant brain that results in activity limitations
Associated hearing, vision, communication, perceptual, cognitive, and behavioral problems
Etiology of Cerebral Palsy
Risk factors include low birth weight, placental abnormalities, birth defects, meconium aspiration, birth asphyxia, neonatal seizures, respiratory distress syndrome, hypoglycemia and neonatal infections
Clinical Manifestations of Cerebral Palsy
Diplegia: both legs are affected
Hemiplegia: only one side of the body is involved, the arm is usually more severely affected than the leg
Quadriplegia: all four extremities are affected
Motor impairment, spasticity, delayed developmental milestones
Metatarsus Adductus
Most common congenital foot deformity characterized by an inward turning of the forefoot at the tarsometatarsal joints
Treatment depends on the degree of foot flexibility
Braces, casting, orthopedic shoes
Clubfoot
Congenital abnormality in which the foot is twisted out of its normal position
Exact cause is unknown, however some believe neuromuscular or vascular problems
Midfoot is directed downward (equinus), the hindfoot turns inward (varus) and the forefoot curls toward the heel (adduction)
Foot is small with a shortened Achilles tendon; muscles in the lower leg are atrophied, but leg lengths are generally normal
Early treatment is essential
Genu Varum
Bowlegs; deformity in which the knees are widely separated while the ankles are close together and the lower legs are turned inward (varus)
Braces, osteotomies, casting
Developmental Dysplasia of the Hip
Refers to a variety of conditions in which the femoral head and the acetabulum are improperly aligned
Conditions include dislocation, hip instability, subluxation, and acetabular dysplasia
Genetic factors appear to play a role
Common signs and symptoms include limited abduction of the affected hip, asymmetry of the gluteal and thigh skinfolds, and telescoping or pistoning of the thigh
60-80% of hip abnormalities resolve by 2 months of age
Pavlik harness, casting