1.Easy
What is the normal range for serum potassium in an adult?
- AAbout 1.5–2.5 mmol/L
- BAbout 3.5–5.0 mmol/L
- CAbout 6.0–7.5 mmol/L
- DAbout 135–145 mmol/L
2.Easy
What is the most common cause of intrinsic (renal) acute kidney injury in hospital?
- AKidney stones
- BAn enlarged prostate
- CAcute tubular necrosis
- DPolycystic kidney disease
3.Easy
Which group of symptoms is typical of hypothyroidism?
- AHeat intolerance, weight loss, a fine tremor and palpitations
- BCold intolerance, tiredness, weight gain and constipation
- CDiarrhoea, anxiety, sweating and bulging eyes
- DGreat thirst and passing large volumes of urine
4.Medium
A patient is due a rapid-acting insulin dose before lunch, but the meal trays are delayed. What should the nurse do?
- AGive the insulin now and the meal when it comes
- BGive the insulin with a glass of water instead
- CWait to give the insulin until the meal arrives
- DOmit the dose entirely for the rest of the day
5.Medium
A seizure has lasted five minutes and is continuing. What is the usual first-line drug treatment?
- AIV glucose 50% in every patient, then reassess
- BIM adrenaline into the outer thigh
- CA benzodiazepine such as IV lorazepam or buccal midazolam
- DAn IV loading dose of phenytoin before anything else
6.Medium
Why is pyridostigmine often taken about 30–60 minutes before meals by patients with myasthenia gravis?
- ATo reduce stomach acid so the food is digested better
- BTo improve the strength of chewing and swallowing at mealtimes
- CTo lower the blood glucose rise after eating a meal
- DTo stop the drug from irritating an empty stomach later on
7.Hard
A patient taking digoxin has a potassium of 2.9 mmol/L. Why is this especially dangerous?
- ALow potassium increases the risk of digoxin toxicity
- BLow potassium makes digoxin leave the body faster
- CDigoxin raises the potassium to dangerous levels
- DDigoxin stops working when potassium is low
8.Hard
The nurse has four urology patients. Which one needs to be seen first?
- AA patient with a suprapubic catheter due for a routine change
- BA patient with stress incontinence asking about pelvic floor exercises
- CA patient with a nephrostomy who has rigors and a BP of 86/50 mmHg
- DA patient after TURP with light pink drainage and mild discomfort
Answer key
- 1. B · About 3.5–5.0 mmol/L
- 2. C · Acute tubular necrosis
- 3. B · Cold intolerance, tiredness, weight gain and constipation
- 4. C · Wait to give the insulin until the meal arrives
- 5. C · A benzodiazepine such as IV lorazepam or buccal midazolam
- 6. B · To improve the strength of chewing and swallowing at mealtimes
- 7. A · Low potassium increases the risk of digoxin toxicity
- 8. C · A patient with a nephrostomy who has rigors and a BP of 86/50 mmHg
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