Febrile Neutropenia Flashcards

1
Q

High risk patient

–almost always admitted to hospital

A

• Neutropenia > 7 days
• AND profound neutropenia (ANC <100 cells/mm3) normally: 5000
• AND/OR significant medical co‐morbid conditions
• MASCC score <21
Hemotologic cancers
Consider prophy w/ quinolone and antiviral

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2
Q

Low risk patient

A
• Brief duration of neutropenia (<7 days)
• No or few comorbidities
• Oral therapy an option?
• MASCC score >=21 
Solid tumors
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3
Q

How to calculate ANC

A

(%neutrophils + %bands) x WBC
__________________
100

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4
Q

Empiric Therapy–what to cover?

A

cover Pseudomonas

also E. coli, Coag neg staph (viridins and epidermis)

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5
Q

High risk patient tx with Anti-pseudomonal beta-lactams + some others

A

Cefepime,
Piperacillin-tazobactam,
meropenem

ceftazidine
Doripenem or imipenem-cilastatin

Levo or Cipro
PCN allergy: Aztreonam

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6
Q

When to add Vanco?

A

Not recommended as part of standard tx
OK in MRSA, KPC catheter-related infection, SSTI with staph aureus, pneumonia, hemodynamically unstable, gram positive blood cultures

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7
Q

g-CSF

A

raise WBC counts
decrease likelihood of neutropenic fever
DOES NOT prevent infection
Use 24-72 hours after chemo

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8
Q

When to changed therapy?

A
Microbiological data (susept)
Don't change if fever doesn't go away and stable!!
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9
Q

Stop Vanco–

A

–2-3 days after initiation if gram+ hasn’t been identified

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10
Q

Remain hemodynamically unstable..

A

..then broaden coverage for gram-neg, gram-pos, fungal, anaerobic

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11
Q

When to start an anti-fungal

A

Start if still have fever 4-7 days after starting and no identified fever source

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12
Q

How long to continue antibiotics

A

At least for duration of neutropenia (until ANC>500)

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13
Q

Who to give antifungal prophy to?

A

HSCT recipients or AML treatment or remission: Candida coverage, -conazoles
AML or MDS: aspergillus coverage with Posaconazole.
Can use flucon, itra, posa, voriconazole. Mica fungin, caspofungin

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14
Q

Low risk outpatient algorithm

A
PO
Levo
or Cipro + Augmentin
or Cipro + Clinda
Assess daily for 3 days
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15
Q

Low risk inpatient algorithm

A

Vanco not needed

Anti-pseudomonal agent

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16
Q

High risk algorithm

A

+/- vanco
Anti-pseudomonal agent
reassess vanco use after 2 days
Need fungal coverage after 4 days?

17
Q

Tumor lysis syndrome (TLS) causes

A

Treatment related from cell rupture

Spontaneous cell lysis when demand exceeds supply

18
Q

TLS releases

A

DNA (uric acid)
Phosphate
Potassium
Cytokines

19
Q

TLS risk factors

A
Bulky disease
LDH>1500
>>bone marrow involvement
high tumor sens to chemo
decreased renal func
high risk cancers (Burkitt lymph, ALL, AML, CML, CLL)
20
Q

Diagnosis of TLS

A

2+ lab abnormalities and symptoms

Uric acid>8, K>6, Phos>6.5, Ca<7 or any change 25%

21
Q

TLS treatment

A
stop offending agents
IV hydration with NS or D5W (bicarb if necessary)
Allopurinol
Rasburicase
HyperK tx, EKG+CaGluc
Calcium acetate or Lanthenum carbonate
22
Q

Calculating Ca2+ during hypoalbuminemia

A

Ca2+corr = Ca2+serum + (0.8 x (4-albumin))
Mild: 10.5-11.9
Mod: 12-13.9
Severe=>14 or symptomatic

23
Q

Hypercalcemia Risk Factors

A
High Ca2+ diet
Poor renal excretion
Thiazides, lithium, VitA&amp;D
PTH
Breast cancer, myeloma, lymphoma
24
Q

Hypercalc symptoms

A
Bones
Stones
Moans
Groans
\+arrhythmias, bradycardia, EKG signs
25
Q

Hypercalcemia Tx

A

Stop offending agents, hydration and loop diuretics if mild/mod
IV hydration with NS if severe (14+) + bisphosphonates + calcitonin

26
Q

Bisphosphonates
Zoledronic acid
Pamidronate

A

start immediately if severe, do not renally adjust or get dental exam.
will deposit in bone matrix
Can give another dose in 7 days

27
Q

Denosumab

A

use if refractory to bisphosphonates
binds to RANKL on osteoblasts
No renal adjustment

28
Q

Calcitonin

A

works quickly
give if symptomatic
inhibits osteoclast activity and GI uptake. promotes renal excretion