Medicines 5 Flashcards

1
Q

What are some signs of vitamin C deficiency?

A

Swollen, bleeding gums: Gums that are swollen, bleed easily, and may become purple and spongy
Skin that bruises easily: Skin that bruises easily
Red or blue spots on the skin: A “scurvy rash” that appears as red or blue spots on the skin, usually on the legs and feet

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2
Q

What is hyponatraemia and which common medications can cause it when in combination or by themselves

A

Hyponatraemia is a condition characterized by a low concentration of sodium in the blood

Thiazide and thiazide-like diuretics inhibit sodium chloride reabsorption in the distal tubules [Saeed, 2014].

Loop diuretics may also cause hyponatraemia, but this is more likely to occur when they are taken in combination with medications, such as angiotensin converting enzyme (ACE) inhibitors or spironolactone

Selective serotonin reuptake inhibitors (SSRIs) — SSRIs (especially citalopram)

Antipsychotics (such as haloperidol and phenothiazines).
Carbamazepine — the incidence varies widely from 4.8–41.5% depending on the population studied.

Less common causes include [Saeed, 2014] [BMJ, 2019] [Jones, 2019]:
Drugs that increase the production, or potentiate the action, of ADH (SIADH):
Opioids.
ACE inhibitors and angiotensin-II receptor antagonists (AIIRAs).
Proton pump inhibitors (such as omeprazole and lansoprazole).
Anticonvulsants (such as sodium valproate, lamotrigine, and leviteracetam).
Amiodarone.
Theophylline.
Dopamine antagonists (metoclopramide and domperidone).
Antidiabetics (insulin, chlorpropamide, and tolbutamine).
Nonsteroidal anti-inflammatory drugs.
MDMA (ecstasy).

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3
Q

What does adjuvant mean in the context of chemotherapy?

A

In the context of chemotherapy, adjuvant refers to treatment given after the primary therapy (usually surgery) to reduce the risk of cancer recurrence and improve overall outcomes. Adjuvant chemotherapy aims to eliminate any remaining cancer cells that may not be detectable but could potentially cause a relapse.

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4
Q

What is febrile neutropenia?

A

Febrile neutropenia is a serious condition that occurs when a patient has a fever and a low number of neutrophils in their blood
It can occur in patients on chemotherapy

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5
Q

what is SACT therapy

A

SACT stands for Systemic Anti-Cancer Therapy, which refers to any treatment used to target and kill cancer cells throughout the body. It is an umbrella term encompassing various systemic treatments delivered to patients with cancer, aiming to shrink tumors, prevent recurrence, or manage advanced disease.

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6
Q

Which anti-sickness medication should not be given in parkinsons disease and what should be given?

A

Metoclopramide (Maxalon), Prochlorperazine (Stemetil), Phenergan (promethazine), and Haloperidol should be avoided

Consider prescribing low-dose domperidone

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7
Q

what are Granulocyte Colony-Stimulating Factors (G-CSFs):

A

Examples:
Filgrastim (daily injection for 5–7 days after chemotherapy).

Pegfilgrastim (a single-dose injection given 24–72 hours after chemotherapy).

Pegfilgrastim is often preferred due to its convenience (single injection per cycle).
Mechanism:
Stimulates bone marrow to produce more neutrophils, reducing the risk of severe neutropenia and febrile neutropenia.
Timing:
Administer 24–72 hours after chemotherapy to avoid interfering with the cytotoxic effects on rapidly dividing cells.

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8
Q

What type of drug is Letrozole

A

Letrozole is an aromatase inhibitor, a type of endocrine therapy used primarily in the treatment of hormone receptor-positive (HR-positive) breast cancer, particularly in postmenopausal women.

Primary Treatment:
For early-stage breast cancer in postmenopausal women, particularly those with ER-positive or HR-positive tumors. It is used adjuvantly (after surgery) to reduce the risk of recurrence.
Secondary (Metastatic) Breast Cancer:
Used in postmenopausal women with metastatic ER-positive breast cancer.
Letrozole is often used when chemotherapy is not indicated, especially in patients who are hormone receptor-positive.

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9
Q

WHat drug would be used in premenopausal women instead of letrozole

A

Tamoxifen

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10
Q
A
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11
Q

How can type 2 diabetes affect COPD?

A

It can make COPD worse. High blood sugar can affect the blood vessels in the lungs. Over time this can damage the blood vessels, leading to worsening of asthma or COPD .
COPD can make it more difficult to do physical activity.

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12
Q

Why is it advisable to take prednisolone as a single dose in the morning?

A

To prevent disruption of circadian rhythm (1mark)
As repeat evening doses can cause pituitary-adrenal suppression (1mark)

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13
Q

What should be checked if opioids are prescribed in the hospital?

A
  • dose increase does not exceed 50% increase - work out total daily dose and divide by 2 for max dose
  • Is Naloxone Prescribed?
  • Is the breakthrough dose correct?
  • Have they been given laxative and correct one (stimulant)?
  • Paracetamol - should be in regular pain meds as its opioid sparing
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14
Q

What is lifestyle advise

A
  • cardioprotective diet à balanced diet, reduce saturated fat and salt
    Foods high in saturated fat include:
    • meat pies
    • sausages and fatty cuts of meat
    • butter
    • ghee – a type of butter often used in Indian cooking
    • lard
    • cream
    • hard cheese
    • cakes and biscuits
    • foods that contain coconut or palm oil
  • Less salt in diet, have to reduce fluid intake 1500-2000ml
    less than 6g
  • 5 a day
  • omega 3 - oily fish atleast twice a week.
  • pregnancy- limit to one portion of oily fish a week - no more than 2 due to containing pollutants.

Regular exercise Reduced chances of developing high blood pressure - lower cholesterol level
* physical activity
* 150 mins of aerobic exercise a week - can still carry on a convo
* 75 mins of vigorous exercise a week
* strength exercise 2 days a week
* weight management

  • smoking cessation
  • need to check motivation to quit.
  • alcohol consumption - causes high blood pressure which is a risk factor - reduce - no more than 14 units per week
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15
Q

How does quitting smoking benefit COPD and diabetes?

A

Smoking is one of the main causes of COPD. Quitting smoking is the most effective way to slow down the progression of symptoms.
Chemicals from Smoking can cause inflammation and to blood vessels

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16
Q

How is circulation affected in diabetes and COPD?

A

Chemicals from Smoking can cause inflammation and to blood vessels
Diabetes - High blood glucose levels cause fatty deposits to form inside blood vessels. Over time, these deposits make your blood vessels narrow and hard, lessening blood flow.
Peripheral Neuropathy

17
Q

what are the common features of scabies?

A

itching (particularly at night)
a raised rash or spots
Tiny mites lay eggs in the skin, leaving lines with a dot at one end.
The rash can appear anywhere, but is common between the fingers.

18
Q

What are the symptoms of measles?

A

Fever, malaise and loss of appetite, conjunctivitis, cough and coryza (blocked or runny nose).
* - Koplik spots appear after 2-3 days (blue-white spots on the inside of the mouth) and 24-48 hours BEFORE the exanthem (rash) stage.
* - Red spots ranging from 0.1-1.0cm in diameter appear on the 4th or 5th day following the start of symptoms
* - NON-itchy rash, NO fluid
* - Begins on face and behind the ears, spreads to the ENTIRE trunk and extremities (palms and soles rarely involved).
* - The spots may all join together, especially in areas of the face
* - Rash usually coincides with the appearance of a high fever
* - When rash fades, it fades to a purplish hue and then to brown/coppery coloured lesions with fine scales

19
Q

What are the symptoms of chickenpox?

A

Most children and adults experience prodromal flu-like symptoms for up to 48 hours before breaking out in rash. These include fever, malaise, headache, loss of appetite and abdominal pain.

    • Begins as an itchy rash of red papules (small bumps) progressing to vesicles (blisters) on the stomach, back and face, and then spreading to other parts of the body. Blisters can also arise inside the mouth.
    • Usually very ITCHY, WITH fluid
    • The spread pattern can vary from person to person – covers ENTIRE body
    • Different stages of lesions are present simultaneously (papules, blisters, crusts)
  • When rash fades, it forms crusts that eventually clear off, leaving scars in some cases
20
Q

What are the symptoms of Shingles?

A

You have to have had CHICKENPOX to suffer from shingles

Usually PAIN (may be severe, in the areas of one or more sensory nerves, often where they emerge from the spine)
* - Sometimes the burning area is ITCHY too
* - Pain just in one spot or may spread out
* - Patient feels unwell, with fever and headache, sensitivity to light
* -Lymph nodes draining the affected area are often enlarged and tender

    • After 1-3 days, a blistering rash appears in the painful area of skin
    • Always asymmetrical
    • Starts as a crop of closely-grouped red bumps in a continuous band on the area of skin supplied by one, occasionally two, and rarely more neighbouring spinal nerves.
    • Blisters in RESTRICTED area
    • New lesions continue to appear for several days, each blistering or becoming pustular then crusting over.
    • Occasionally affects internal organs and causes blisters inside the mouth or ears, lungs, or the genital area.
    • Occasionally shingles “sine eruption” – no rash, difficult to diagnose
21
Q

How would you differentiate irritant and contact dermatitis?

A

Contact - Skin contact with substances that most people DON’T react to (nickel, perfume, rubber, hair dye, preservatives)
- Hours after contact with responsible material and
- NOT from first contact! (delayed T-cell mediated type of allergic reaction)
- Itching, burning sensation

Irritant - - Presence of trigger factor
- Handling water, detergents, solvents, chemicals
- Immediately after exposure to irritant
- More PAINFUL than itchy

22
Q

What are the symptoms of uticaria?

A

Uticaria is another name for HIVES!
- Usually very ITCHY
* - Wheals red or white, surrounded by a red or white flare
* - Wheals well-defined raised lesions with smooth surface (even if they change shape)
* - Range in size from a few millimetres to many centimetres in diameter
* - Shape also varies: round, polycyclic (overlapping circles), annular (ring-shaped), geographic (like a map)
* - Randomly distributed on the body and may affect any site
* - Possible presence of oedematous skin
- Wheals last no more than 24 hours and do not leave any marks behind

23
Q

What are the symptoms of impetigo?

A

Impetigo starts with red sores or blisters, but the redness may be harder to see in brown and black skin.

The sores or blisters quickly burst and leave crusty, golden-brown patches.

The patches can:

look a bit like cornflakes stuck to your skin
get bigger
spread to other parts of your body
be itchy
sometimes be painful

Sores (non-bullous impetigo) or blisters (bullous impetigo) can start anywhere – but usually on exposed areas like your face and hands.

24
Q

What are the two main types of HRT?

A

There are 2 main types of HRT:

combined HRT (oestrogen and progestogen) – for women who still have their womb
oestrogen-only HRT – for women who have had their womb removed in a hysterectomy

25
Q

What are the advantages and disadvantages of tablet forms of HRT?

A

Tablets
Tablets are one of the most common forms of HRT. You usually take them once a day. Both oestrogen-only and combined HRT are available as tablets.

Advantages
Taking tablets once a day may be the easiest way of having treatment.

Disadvantages
Some of the risks of HRT, such as blood clots, are higher with tablets than with patches, gel or spray (although the overall risk is still small). Find out more about the benefits and risks of HRT.

26
Q

What are the advantages and disadvantages of patch forms of HRT?

A

Patches
Skin patches are also a common way of taking HRT. They work by sticking onto your skin on the lower part of your body and they gradually release small amounts of hormones into your body.

You’ll usually change your patch every few days, but each brand is different.

Both oestrogen-only and combined HRT are available as skin patches.

Advantages
Patches may be a better option than tablets if you have difficulty swallowing tablets, or are likely to forget to take it.

Using patches can also help to avoid some side effects of HRT, such as indigestion, and unlike tablets, they do not increase your risk of blood clots.

Disadvantages
You might find that skin patches do not always stick well, especially if you moisturise your skin. Patches can also cause redness or irritation, or leave a mark on the skin.

Applying the patch to dry, non-moisturised skin, or peeling it off slowly to avoid marks can help.

27
Q

What are the advantages and disadvantages of oestrogen gels?

A

Oestrogen gel
Oestrogen gel is an increasingly popular form of HRT. You take it by smoothing it onto your skin once a day. Oestrogen is gradually absorbed into your body.

If you have not had a hysterectomy, you must use this gel with a progestogen.

Advantages
Like skin patches, gel can be a good way of taking HRT if you cannot take tablets. Using gel does not increase your risk of blood clots.

Disadvantages
It can take 5 minutes or more for the gel to dry on the skin, so you may have to wait a while before you can do anything else.

28
Q

what are key points to consider with Tacrolimus

A
  • Has to be prescribed by brand
  • Macrolides cause a large increase in levels- avoid concomitant use.
    Side Effects of Calcineurin Inhibitors;
    Alopecia, gum hyperplasia (more common with ciclosporin), tremor (dose related), glucose intolerance, increase cholesterol levels, hypertension, neurotoxicity, nephrotoxicity, hepatotoxicity. Monitor kidney
29
Q

Which medicines should be avoided in syringe drivers and why?

A

Chlorpromazine, prochlorperazine and diazepam are contraindicated as they cause skin reactions at the injection site.
Cyclizine and levomepromazine also sometimes cause local irritation.

30
Q

What are the 4 cs for C diff infections

A

*Clindamycin
*Cephalosporins
*Quinolones, ciprofloxacin
*Co-amoxiclav

31
Q

Aspiration pneumonia

A

Inflammation and infections of the lungs or large airways
Breath something into lungs instead of swallowing food or liquids - from GI tract
Bacteria can grow as a result in the lungs

32
Q

What is the treatment for hyperkalaemia?

A

1) Calcium gluconate 10% 10mL over 5-15 mins
2) INSULIN ACTRAPID® 10 units in 50 mL of Glucose 50% IV over 30 minutes
3) Salbutamol nebs 5-10mg QDS
4) Calcium resonium 15 g 3–4 times a day

Treatment of raised K+ prevent harm - protect against myocardial excitability

33
Q

The doctor asks your advice on drug choice, dose and how to switch from warfarin. How do you respond?

A

Any from:
Apixaban, 2.5mg bd, stop warfarin and start apixaban when INR<2
Edoxaban, 30mg od, stop warfarin and start edoxaban when INR </=2.5
Rivaroxaban contraindicated – insufficient dietary intake, 15mg dose with >500cals
Dabigatran contraindicated – CrCl<30ml/min