How to read a nursing exam stem: the five parts and the traps in each

The five parts of a stem

Most single-best-answer nursing questions are built from the same pieces. Item-writing guides such as the National Board of Medical Examiners guide describe a clear lead-in and options that are all plausible, which is why a careful read matters more than speed.

• Patient: age, condition and any detail that changes risk, such as pregnancy, a child or an older adult.
• Setting: ward, emergency department, community or home. The setting changes what you can do.
• Trigger: the new finding, such as a falling blood pressure, a new rash or a patient who refuses.
• Lead-in: the question itself, usually the last line.
• Options: often four in practice questions, with one best answer and plausible alternatives. DHA does not state the number.

Read the lead-in first

Jump to the last line, then read the stem with that question in mind. The same scenario can produce different correct answers depending on the lead-in.

• First or priority: put the most urgent threat to life ahead of the rest. See prioritisation frameworks.
• Best or most appropriate: more than one option may be acceptable. Pick the safest and most direct.
• Further teaching needed: this is a negative stem. The right answer is the statement that is wrong or unsafe.
• Which finding needs escalation: look for the change from baseline, not the abnormal value that was already known.
• Which task to delegate: assessment, teaching and care planning stay with the registered nurse.

Find the detail that changes the answer

Writers include one or two facts that decide between the top options. Typical ones are a changed observation, an allergy, a time, a drug name or a stated preference of the patient.

Underline these in your head: what is new, what is unstable, what is the patient asking for. Ignore long background that does not touch the lead-in.

A worked example

This question is invented for teaching. A man is two hours after a bowel operation. He reports new shoulder pain. His heart rate has risen and his blood pressure has fallen compared with the last set. Which action should the nurse take first? Options: give the prescribed analgesia; repeat the observations in an hour; escalate using SBAR and stay with him; offer a warm drink.

The lead-in says first. The trigger is a falling blood pressure and a rising heart rate after surgery, so the threat is possible bleeding or shock. Analgesia and a drink miss the threat. Waiting an hour delays escalation. Escalating with SBAR and staying with the patient is the best answer. Notice that you could find it without recalling any rare fact.

Common traps

Check yourself against these.

• Answering a question that was not asked, such as treating when the lead-in says assess.
• Skipping the word not, except or further teaching in a negative stem.
• Choosing a true statement that does not address the trigger.
• Adding facts the stem did not give, such as imagining a doctor is already on the way.
• Liking an option because it sounds clinical. Check that it matches the lead-in.

How to practise

Take ten questions and, before you look at the options, write the lead-in and the deciding detail in a few words. Then answer. When you miss one, note which part you misread. This pairs well with the single best answer technique and with logging errors in an error log.

Common question styles and what each is asking

Learn to name the style in a second. It tells you which skill to use.

• Priority: rank threats to life. Airway, breathing and circulation come before comfort and teaching.
• Assessment before action: if the stem gives a new finding and you are unsure, gather the key data first, unless the patient is unstable.
• Implementation: choose the safe way to do a procedure or give a medicine, such as checking identity and allergies.
• Teaching: pick the statement that shows the patient has understood, or the one that needs correcting.
• Delegation: decide what a registered nurse keeps and what can be assigned, according to local policy.
• Calculation: one number is the key. Show working on the whiteboard or paper if the test centre allows it, and check the units.

A second worked example

Invented for teaching. A patient being discharged says she will stop her blood pressure tablets when she feels well. Which response by the nurse is best? Options: tell her that is fine if readings are normal; explore her concerns and explain why the medicine is taken; ask her daughter to hold the tablets; document and discharge.

The lead-in asks for the best response and the trigger is a stated intention. Option one gives unsafe advice. Option three removes her choice. Option four ignores the trigger. Exploring concerns and explaining is the best answer because it respects the patient and addresses the risk. The deciding detail was the patient’s own statement.

Frequently asked questions