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MCQs – 16 April 2015

Q.1

STRIAE GRAVIDARUM

Normally develop in the first half of pregnancy.

Occur most frequently in thin women.

Are initially pink or violaceous linear wrinkles.

Can be presented by emollient massage.

Disappear completely in time.

Q.2

FOR MOST ACCURATE USE OF URINE TESTING STRIPS

Store bottle containing test strips in refrigerator.

Only test fresh urine samples.

Comparing a wet stick with a dry stick is as good as comparing with the colour chart on the bottle.

Always replace bottle cap promptly and tightly.

Read test instructions before starting testing.

Q.3

ORAL CEPHALOSPORINS

Should never be given to patients allergic to penicillin.

Dose should be reduced if renal function is significantly impaired.

Must not be taken with food.

Are effective against penicillin-resistant staph aureus.

Can be regarded as safe in pregnancy.

Q.4

ENTROPION

Initial complaint is likely to be of a watery eye.

Can be brought on by asking the patient to close the eyes tightly, then to open them.

Causes the eyelashes of the lower lid to be pushed to the side.

Temporary treatment consists of taping-down the lower lid.

Operation to rectify is in most cases carried out under general anaesthesia.

Q.5

IN CHILDREN, THE FOLLOWING CONDITIONS SHOULD LEAD THE GP TO SUSPECT A DIAGNOSIS OF CYSTIC FIBROSIS

Nasal polyps.

Rectal polyps.

Severe gastro-oesophageal reflex.

‘Difficult’ asthma.

Chronic diarrhoea.

A.1.

False. Occur during the second half of pregnancy in most women.

False. Most in overweight or women with larger abdomens.

True. Perpendicular to skin tension lines.

False. No specific prevention but avoiding excess weight gain helps.

False. Become white and atrophic but never disappear.

A.2.

False. In cool, dry place but not fridge.

True. If old, has alkaline pH and will give false positive for protein.

False. Simply wetting may well produce a colour change, which is not significant.

True. And do not use strips after expiry date.

True. So interpret colour changes at the correct time.

A.3.

False. About 10 per cent of penicillin-sensitive patients will also be allergic to cephalosporin.

True. Are excreted mainly by the kidneys.

False. Absorption almost complete, even in presence of food for older drugs. Newer ones’ absorption increased if given with food.

True. Also active against most ampicillin resistant H.influenzae or E.coli.

True. Have been used widely for many years.

A.4.

False. Of irritation due to eyelashes rubbing on the cornea.

True. May be intermittent so lid in normal position when seen.

True. By the regular in-turning.

True. And applying antibiotic ointment to help prevent further ulceration and scaring of the cornea.

False. Local anaesthetic operation gives permanent correction.

A.5.

True. Virtually pathognomonic of CF at this age.

True. Even in otherwise totally well child, may be due to CF.

True. Or bowel obstruction in babies, liver disease in later childhood.

True. Or recurrent or severe chest infections.

True. Usually with failure to thrive.

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