Phenytoin and oral contraceptives: nursing answer guide

Three unrelated items, and the last one is a pharmacology question wearing a communication question's clothes.

The phenytoin item asks how the nurse should respond to a patient's question, which invites an answer about therapeutic communication and reassurance. It is not that. A 24-year-old newly diagnosed with seizures has been started on phenytoin and wants to know whether she can continue her oral contraceptive, and there is a specific pharmacological answer with a specific consequence. Phenytoin induces the hepatic enzymes that metabolise the hormones in combined oral contraceptives, so it accelerates their clearance and lowers their circulating concentrations. The contraceptive becomes less reliable. Answering warmly without saying that is the failure mode this item is built to catch. The clue is that the item names both drugs by class and by name; a question about therapeutic communication would not have needed either, and the specificity is there because the pharmacology is the point.

What makes the answer more than a drug interaction is what sits on the other side of it, and this is the point that separates a strong response. Phenytoin is teratogenic. So the interaction is not simply that a medication has become less effective; it is that the drug undermining her contraception is also a drug on which an unplanned pregnancy carries elevated risk to the fetus. The two facts compound rather than sit side by side, and a nurse who states only the first has given her half of a picture whose halves multiply. Saying so plainly, without alarming her, is the register this answer needs. She is 24, newly diagnosed, and has asked a sensible question; the information belongs to her, and delivering it accurately is a different skill from delivering it gently, though the answer needs both.

The practical response therefore has three parts. Tell her what is happening and why, in terms she can act on. Do not tell her to stop either drug — that is not the nurse's decision and stopping an anticonvulsant abruptly is dangerous. Refer the question to the prescriber, and know what the realistic options are so the conversation is informed: a contraceptive method not dependent on hepatic hormone metabolism, an additional barrier method, or reconsideration of the anticonvulsant itself, since not all of them induce these enzymes. Pre-conception counselling and folic acid belong in the conversation too, because they are relevant whether or not she intends to conceive. The point of raising them now is that the window in which folic acid matters closes before most people know they are pregnant, which is exactly the situation a reduced-reliability contraceptive creates.

The tuberculosis item specifies three teaching points covering treatment and transmission, which is two topics, so an answer whose three points are all about tablets has answered half the question. On treatment the durable points are that therapy is long and combination-based, that it must be completed even after the person feels well because stopping early is how resistance develops, and that adherence support such as directly observed therapy exists precisely because completion is difficult. On transmission: it spreads through the air rather than by surfaces or shared utensils, close contacts need testing, and infectiousness falls once effective treatment is under way — which is the fact that most reduces a family's fear. Pitching these to a client and their family, as the item specifies, means the transmission points have to be usable at home rather than framed as infection control policy.

The role-change item is the quietest of the three and the one where answers become vague. A client has had a life crisis leading to a new perspective on their role and contribution to the family, and you are asked for two assessment findings indicating successful adaptation. The word doing the work is findings: something you observe or elicit, not an inference about mood. Statements in which the client describes the new role in their own terms and without distress count. So does resumption of activity and relationships — re-engagement with family routines, returning to interests, sleeping and eating patterns re-established, and realistic future-oriented planning rather than either denial or hopelessness. Two of those, described as things the nurse observed or the client said, will do; the trap is writing that the client appears to be coping well, which is a conclusion presented as an observation.

Across all three items the same discipline applies, and it is worth stating because these worksheets reward it consistently. Each question names a number and a scope, and the scope is usually broader than the first answer that comes to mind — treatment and transmission, findings rather than feelings, pharmacology rather than reassurance. Read the noun each item asks for before writing, and check afterwards that what you produced is that noun. Most marks lost here are not lost to ignorance; they are lost to answering a slightly different question from the one asked, confidently and at length.

Name the enzyme induction, name the teratogenicity, split treatment from transmission, and give findings rather than impressions.