Pearls Flashcards
G-CSF timing
Short acting: don’t give 24h before or after chemo
Long acting: don’t give within 12 days before or 24h after chemo
G-CSF + bleomycin
G-CSF enhances bleomycin pulmonary toxicity- avoid use within 24 hours
-okay to use in testicular ca regimens
-g-CSF not recommended in initial Hodgkin’s regimens except BEACOPP (escalated)
Which body weight is used for crcl in carbo AUC calculation?
Under/normal weight (BMI <25%): actual body wt
Overwt/ obese (BMI 25%+): adjusted body wt
Round scr to 0.7 or 0.8 usually
Use 24 hr urine collection gfr if available
Which solid tumors are intermediate risk for TLS?
Neuroblastoma, germ cell tumors, small cell lung cancer
How often is PCV dosed?
Q6 weeks- prolonged nadir
ANC equation
10 x WBC x (%PMNs + % Bands)
Which g-CSF can be used for tx of fn?
Filgrastim.
Pegfilgrastim is for ppx NOT tx
When can you add vanc for Neutropenic fever?
-line infxn
-hx MRSA or drug resistant strep pneumo
-PNA
-sepsis or HD instability
-blood Cxs growing g+
-SSTI
*do not add for fever alone or for persistent fever- takes 2-7 days to resolve
When do we consider ABX ppx for febrile neutropenia ?
If we expect pt to be neutropenic for > 1 wk
When is pjp ppx needed ?
> 20 pred equivalents x >30 days
Where does osteosarcoma usually spread to and recur?
Lungs
Can Carboplatin replace cisplatin in testicular cancer?
No
Vinca alkaloids and myelosuppression
-not for vincristine
-yes for Vinblastine and Vinorelbine
*B for BMS
Which brain lesions are more likely to bleed spontaneously?
Brain Mets from RCC and melanoma.
Should still use AC
How is acute bleomycin pulmonary toxicity tx?
Drug discontinuation and corticosteroids
Which drug increases risk of cisplatin ototoxicity?
Vinblastine
Goal serum testosterone with ADT
<50 after 1 month
What is another name for IDH wild type grade 4 astrocytoma?
Molecular glioblastoma
Adjuvant Nivolumab vs avelumab I’m bladder CA
Nivolumab: MIBC
Avelumab: metastatic
Hypersensitivity to taxanes management
-give premeds (h1, h2, steroid)
-if you can control the situation CAN resume at a slower rate
-mild rxn give h1, severe give h1, h2, and steroid (like premeds)
Hypersensitivity to platinums management
-Do NOT just decrease rate
-can consider desensitization protocol
-could rechallenge mild Oxaliplatin rxn
-could rechallenge if mild rxn on FIRST EXPOSURE, but do NOT rechallenge if rxn is on second or later exposure even if mild!
IgE type 1
General management of hypersensitivity RXNs
Mild:
-stop infusion
-give h1 blocker or steroid if delayed rxn (platinums)
-if still not resolving give epi
Severe (changes to vitals or O2:
-stop infusion
-give oxygen
-nebulized bronchodilators
-give both h1 and h2 blockers
-give corticosteroids
-if not resolving give epi
Life-threatening:
-stop infusion
-put pt in recumbent position
-give epi
-O2 8-10L
-1-2 L NS IVB for hypotension
-give both h1 and h2 blocker
-give steroid
-additional support if in cardiopulmonary arrest
Can rechallenge grade 1-2
When to stop filgrastim?
Stop when ANC above 1500 for 3 days or 5000 for 1 day- AFTER THE NADIR
fyi 1 day of pegfilgrastim is worth ~10days of filgrastim
Define castrate resistant
Progression despite testosterone levels <50 ng/dL