Corrections - Oncology pt2 Flashcards
What is the drug of choice in palliative care for reducing the discomfort of a painful mouth?
Benzydamine hydrochloride mouthwash or spray
Are prostatic bony mets sclerotic or lytic?
Sclerotic
What are the carcinogenic types of HPV (assocaiated with an increased risk of cervical cancer)?
16, 18 and 33
What is Ca15-3 a tumour marker for?
Breast cancer
Which lung cancer has the strongest association with smoking?
Squamous cell lung cancer
What is calcitonin a tumour marker in?
Medullary thyroid cancer
What breast condition is blood stained discharge most likely to be associated with?
Intraductal papilloma.
Which chemotherapy agent is most commonly associated with hypomagnesaemia?
Cisplatin
What does a PET scan demonstrate?
Glucose uptake
Where is the most common site of bony mets?
Spine
Which chemotherapy agent is most associated with haemorrhage cystitis?
Cyclophosphamide
Which 2 chemo agents can cause peripheral neuropathy??
1) vincristine
2) cisplatin
What cancer does a raised beta-HCG and raised AFP indicate?
Non-semiomatous testicular cancer (a raised AFP excludes a seminoma)
What investigation must be done on a daily basis in patients with post-op ileus?
Electrolyte panel
What is calcitonin a tumour marker for?
Medullary thyroid cancer
What are the 3 key side effects of cisplatin?
Nephrotoxicity, ototoxicity & peripheral neuropathy
Screening for patients at high risk of HCC (e.g. alcoholic liver disease, hep B, hep C, haemochromatosis and A1AT deficiency)?
6-12 monthly US + AFP
How can squamous cell lung cancer cause brachial neuropathy?
Pancoast tumour
Symptoms of brachial neuropathy?
- Severe pain in the upper arm or shoulder.
- Pain usually affecting just one side of the body.
- After a few hours or days, the pain transitions to weakness, limpness, or paralysis in the muscles of the affected arm or shoulder.
Which type of testicular cancer does a raised AFP indicate?
Non-seminoma testicular tumour
WHO classification 0?
able to carry out all normal activity without restriction
WHO classification 1?
restricted in strenuous activity but ambulatory and able to carry out light work
WHO classification 2?
ambulatory and capable of all self-care but unable to carry out any work activities; up and about more than 50% of waking hours
WHO classification 3?
symptomatic and in a chair or in bed for greater than 50% of the day but not bedridden
WHO classification 4?
completely disabled; cannot carry out any self-care; totally confined to bed or chair.
In what 2 cancers if transcoelomic spread seen?
ovarian carcinoma and mesothelioma
What is transcoelomic spread?
Refers to spread of a primary tumour through the peritoneal cavity and onto the surface of organs covered by the peritoneum.
What is the 1st line pharmacological treatment for nausea and vomiting in the last days of life for patients with obstructive bowel disorders?
Cyclizine
What cancer are Orphan-Annie cells on histology pathognomonic of?
Papillary thyroid cancers
What medication can be considered in metastatic bone pain?
Zolendronic acid (bisphosphonate)
What are the 3 most likely cancers to metastasise to the liver?
1) Colorectal (via the portal circulation which drains the gut)
2) Breast
3) Lung
What is the Hb threshold for blood transfusion in patients without features of ACS?
<70
What is the Hb threshold for blood transfusion in patients with features of ACS?
<80
What dose of morphine sulphate is typically given for opioid naive patients in end of life care?
1-2.5mg
What is the dose equivalent of 10mg oral morphine for oral oxycodone?
5mg
What is the dose equivalent of 10mg oral morphine for SC oxycodone?
1.5mg
What is the dose equivalent of 10mg oral morphine for diamorphine?
3mg
What are the 2 types of pain?
1) Nociceptive –> directs damage to body tissue (somatic e.g. muscle/skin/bones or visceral i.e. internal organs).
2) Neuropathic –> direct damage to nerve tissue (CNS or PNS)