Onc Flashcards

(54 cards)

1
Q

What is the grade of a cancer?

A

How much is resembles cells of origin

Poorly differentiated= dont resemble original cell and rpaid growth

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2
Q

What is stage of cancer?

A

Size and spread

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3
Q

Explain TNM staging?

A

Tumour 0-4 depending on cancer
Nodes (0 -2)
Mets (0-1)

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4
Q

What is neo adjuvant chemo?

A

Before surgery to shrink tumour

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5
Q

What is adjuvant chemo?

A

Post chemo

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6
Q

How does radiotherapy work?

A

Creates O2 free radicals whichdamage DNA

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7
Q

Which causes more side effects? More small sessions or fewer long ones?

A

Fewer long ones- used for palliative chemo

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8
Q

What are short term side effects of chemo?

A
Nausea
Vomit
Anorexia
Oesophagitis
Diarrhoea
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9
Q

What is initial response to immunotherapy?

A

Causes tumour to swell

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10
Q

What ECG sign is present in hypercalcaemia?

A

Short QT

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11
Q

How is hypercalcaemia managed?

A

Rehydrate

Bisphosphonates- Pamindronate

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12
Q

What are side effects of bisphosphonates?

A
Bone pain
Myalgia
Headache
Low phosphate
Osteonecrosis of jaw
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13
Q

What is given for persistant hypercalcaemia?

A

Denosumab monoclonal ab which inhibits RANK and this osteoclast maturation

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14
Q

What malignancies cause hypercalcaemia?

A

Breast
Myeloma
Lung
Prostate

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15
Q

How do you investigate SVCO?

A

CT and Doppler

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16
Q

How to you manage SVCO?

A

Elevate head
O2
Dexamethasone
Stenting or radiotherapy

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17
Q

Why are cancer patients prone to catastrophic bleed?

A

Low platelets or liver pathology

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18
Q

How is catastrophic bleeding managed?

A

Transexamic acid
Arenaline soaked gauze
Oral transxeamic acid

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19
Q

What are risk factors for tumour lysis syndrome?

A

Volume depletion
Renal impairment
High pre treatment urate/lactate/LDH

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20
Q

What is presentation of tumour lysis syndrome?

A
Weakness
Constipation
Vomit
Palpitations
Chest pain
Arrythmias and collapse
Decrased urine output
AKI
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21
Q

What is pathophysiology of tumour lysis syndrome?

A

AKI caused by high urate and calcium deposits in tubules

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22
Q

What is seen in metabolic picture in tumour lysis syndrome?

A

Hyperuricaemia
Hyperphosphateaemia
Hyperkalaemia
Hypocalcaemia

23
Q

What is prophylaxis used in tumour lysis syndrome?

A

Fluids
Allopurinol (lowers uric acid production)
Rasburicase (lower uric acid in blood)

24
Q

How is tumour lysis syndrome treated?

A
FLUID
Calcium gluconate
IV insulin
Salbutamol neb
Rasburicase
Acetazolomide
Dialysis if severe
25
What is given as prophylaxis for neutropaenic sepsis?
Fluoroquinolone
26
Where does the spinal cord end of cauda equina?
L1
27
What is given to manage Spinal cord compression?
``` Dex and PPI Bisphosphonate for bone pain VTE prophylaxis REHAB MRI whole spine ```
28
What is given to treat neutropaenic sepsis?
Piperacillin | Tazobactam
29
What are most breast cancers?
Ductal
30
What is used to treat oestrogen sensistive breast cancers in premenopausal women?
Tamoxifen
31
What is used to treat oestrogen sensitive breast cancers if post menopausal?
Aromatase inhibitors
32
What is used to treat HER 2 sensitive breast cancers?
Herceptin
33
What is used to treat triple negative breast cancers?
AGGRESSIVE Adjuvant chemo only
34
What kind of lung cancer do non smokers get?
Adenocarcinoma (NSCLC)
35
What prognostic score is use in breast cancer?
Nottingham
36
What score is used for survuval in Colorectal cancer?
Duke's
37
How is prostate cancer diagnosed?
TRUS biopsies | Low is less than 6
38
What aged people are screened for breast cancer and how often and how?
50-70 every 3 years | Mammography
39
What age of person is screened for bowel cancer?
FIT test | 50-74 years
40
What ages of women are scervical screened?
25-49 3 yearlys | 50-65 5 yearly
41
What results are seen in cytology from a smear?
Inadequate, normal or abnormal
42
Of the abnormal cytology how is broken down further?
Borderline Low grade dyskaryosis- colp High grade (2 week wait) Borderline then tested for HPV- if pos = colposcopy
43
WHat is done if colposcopy is positive?
Cone biopsy
44
What % of background dose is used for breakthrough pain?
1/10 to 1/6
45
How do you calculate a 24 plan for pain releif on opiates?
Convert all doses of opiates in 24 hours to oral morphine and sum up, then convert to subcut/IV
46
How much stronger is IV/subcut opiate to oral
DOUBLE as strong subcut
47
What is given for nausea in palliative care if mechanical cause?
Metoclopramide | Pro kinetc
48
What is given for nausea in palliative care if chemical induced?
Haloperidol (D2)
49
What anti sickness drugs arent given in palliative care?
Cyclizine Ondansetron (constipation) Antimuscarinics
50
Why is cyclizine not given palliatively?
Causes halluncations when mixed with opiates
51
What is used in palliative care anxiolytic?
Midazolam
52
What is used for breathlessness in palliative care?
Morphine
53
What is used for secretions in palliative care?
Hyoscine Butylbromide (anticholinergic)
54
What is the gene mutation for breast cancer that is checked as well as BRCA?
P53 gene mutations