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18 Cards in this Set

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Hyperleukocytosis

1. Peripheral WBC count is > 100k, causing increased blood viscosity and blast-cell aggregates, and thrombi in the microcirculation..


2. 9-13% A.L.L., 5-22% AML, all CML..


3. More common in infant A.L.L and AML, the blast phase of CML, T-cell A.L.L with a mediastinal mass, and hypodiploid A.L.L..

S & S of hyperleukocytosis

- SOB, tachypnea, cyanosis..


- blurred vision, headaches, seizures..


- papilledema..


- agitation, ataxia, confusion, delirium, and stupor..

Management of hyperleukocytosis

1. I.V. hyperhydration..


2. bicarb..


3. allopurinol or rasburicase..


4. blood transfusion, leukopheresis, exchange transfusions, and chemo.

TLS

1. Hyperuricemia: uric acid > 8..


2. hyperphosphatemia: phos >10..


3. Hyperkalemia: K > 6..


4. Hypocalcemia: calcium <8..


5. Elevated BUN and creatinine.

Risk factors for TLS

- Patients with T-cell A.L.L, Burkitt and other B-cell NHL, a significantly elevated WBC count, an elevated uric-acid level, and LDH > twice the normal upper limits..


- Patients with a large tumor burden with lymphadenopathy, mediastinal mass, hepatosplenomegaly, and renal insufficiency.

S & S of TLS

1. Rapid onset, may begin at prediagnosis, at 6-48hours after initial treatment, and up to 7 days after..


2. Abnormal lab results; flank pain, hematuria; decreased UOP; lethargy; N/V; edema; muscle cramps and twitching; numbness and tingling; carpopedal spasms; SEIZURES; diarrhea; respiratory distress; belly fullness or ascites; irregular heartbeat.

Nursing management of TLS

The single most important intervention is hydration..


1. I.V. hydration with D5NS, no K..


2. Maintain UOP > 3-5 cc/kg/hour, urine SG < 1.010, pH at 7.0-7.5..


3. Monitor for edema (weight)..


4. Seizure precautions.

Risk factors for septic shock

- Prolonged neutropenia (> 7days)..


- ANC < 100..


- Breaks in skin and mucus-membrane..


- Invasive devices..


- malnutrition..


- asplenia..


- If patient is 7-10 days post chemo with fever/ lethargy, work-up for sepsis..

Medical management of septic shock

- Volume resuscitation is the most important intervention..


- Antimicrobials is the only proven treatment..


- May lead to D.I.C..

Disseminated Intravascular Coagulation (DIC)

1. Intravascular consumption of platelets and plasma clotting factors.


2. Decreased platelets (< 20); increased PT, PTT; decreased fibrinogen; increased D-dimer.


3. Diffuse uncontrolled bleeding may be present.


4. Gram-negative sepsis is the most common cause of DIC in children with cancer.

Typhlitis

1. A bacterial invasion of the cecum that leads to necrotizing colitis as a result of chemo damage to the intestinal mucosa in the context of neutropenia..


2. Range from inflammation to full-thickness infarction, perforation, or both.

S & S of typhlitis

- Neutropenia..


- abdominal pain in the RLQ..


- distended abdomen..


- high-pitched, diminished, or absent bowel sounds..


- N/V and diarrhea.

Syndrome of inappropriate antidiuretic-hormone secretion (SIADH)

1. A high circulating level of ADH in the absence of a physiologic stimuli..


2. A decrease in UOP, and an increase in weight without edema, leading to hyponatremia and water intoxication..


3. The most common cancers are: CNS tumors, Hodgkin lymphoma, and NHL.

Chemo agents associated with SIADH

Cisplatin, Cytoxan, and VCR.

S & S of SIADH

1. Early (Na < 130): thirst, anorexia, headache, muscle cramps, weakness, and lethargy..


2. Midcourse (Na < 125): N/V, hyporeflexia, confusion..


3. Late (Na < 120): seizures, coma, death.

Pancreatitis

Can be life-threatening in immunocompromised host..


Causes are:


- Pancreatic enzyme release..


- Pulmonary or capillary alteration..


- Systemic perfusion compromise..

S & S of pancreatitis

- Radiating abdominal pain..


- N/V..


- Dizziness..


- Abdominal distension..


- Diminished bowel sounds..



Renal Toxicities

1. Renal insufficiency:


- Baseline creatinine doubles..


- GFR decrease by 50%..


2. Renal failure:


- Baseline creatinine triples..


- Creatinine > 4.0 mg/dl..


- GFR decrease by 75%..