The following statement is true about magnesium:                                    1.        It produces an anticonvulsant effect.2.        It is required for DNA replication.3.        It is required for RNA synthesis4.        It is essential for red blood cells.5.        It maintains fluid and blood volume

Scurvy is a deficiency of the following vitamins:                                        1.        Vitamin A2.        Vitamin B63.        Vitamin C4.        Vitamin D5.        Vitamin E

The following is the alternative name for cyanocobalamin:                     1.        Vitamin B122.        Vitamin B33.        Vitamin K4.        Vitamin C5.        Vitamin E

Oral ferrous sulphate is contraindicated in:                                                1.   Prophylaxis of iron deficiency anaemia2.   Chronic alcoholism 3.   Pregnancy4.   Vitamin B12 deficiency anaemia5.   Folate deficiency anaemia

Match the following drug examples with the correct drug indications. Each answer may be used more than once or not at all:

The following antibacterials are metabolised in the liver: (1)1.   Gentamycin2.   Erythromycin3.   Tetracycline4.   Cloxacillin5.   Kanamycin

Promethazine is contraindicated in:                                                        1.   Acute anaphylaxis2.   Treatment of motion sickness3.   Children below 2 years old4.   Angio-oedema5.   In obstetrics for its sedative effects

Inadvertent intravascular administration of a large dose of an amide local anaesthetic can result in:                                                                              1.       Gastritis2.       Hepatic damage3.       Weight loss4.       Renal failure5.       Seizures

The mechanism of action of promethazine is as follows:                   (1)The mechanism of action of promethazine is as follows:1.           Blocks the actions of histamine at H2-receptors2.           Stabilizes mast cells and inhibits the release of allergic mediators 3.           Blocks the actions of histamine at H1-receptors 4.           Activates α-and β-adrenoceptors to produce the opposite effects to histamine5.           Prevents the biphasic reaction in anaphylaxis

The following are classified as β-lactamase sensitive penicillins:    BenzylpenicillinCloxacillinPiperacillinAmpicillinAmoxicillin