Nursing care
Scope of Practice, explained for the bedside and the exam
Written and reviewed by Dana Whitfield, RN, MSN · 5 min read · Updated September 2026
Short answer
Scope of practice is the set of tasks a nurse is legally permitted to perform, set by state nurse practice acts and refined by each employer's policies. What an LPN can do differs by state, so the NCLEX tests the federal floor common to every jurisdiction rather than any single state's ceiling. When a question hinges on scope, choose the answer that holds true everywhere.
Defining it precisely
Scope of practice is a legal boundary, not a skills checklist. It is defined by each state's nurse practice act, enforced by the state board of nursing, and it answers one question: is this nurse legally authorised to perform this action, in this role, in this state. Competence is a separate matter. A nurse can be technically capable of starting a central line and still be outside scope if the practice act reserves that task for a provider or an advanced practice nurse.
The practice act sets the outer limit. Inside that limit, an employer's policies and procedures can narrow what a nurse actually does on a given unit, but they cannot expand it. A hospital policy that lets an RN hang blood on a busy floor does not create authority the practice act does not grant. When policy and practice act conflict, the practice act wins. Read questions about scope with that hierarchy in mind: state law first, facility policy second.
The exceptions that matter
The single fact worth memorising is that LPN scope varies by state, sometimes sharply. Some states allow LPNs to administer IV push medications or manage certain central lines under supervision; others restrict LPNs to peripheral IV maintenance and oral or IM medications only. Initiating blood transfusions, conducting the initial nursing assessment, and independent triage decisions are reserved for RNs in the large majority of states, but 'large majority' is not 'all', and the exam will not ask you to know which state is the exception.
Because of that variation, the NCLEX tests the floor every jurisdiction agrees on, not the ceiling any one state permits. If a question describes an LPN independently completing an admission assessment and developing the plan of care, the correct answer treats that as outside LPN scope everywhere it would matter for the exam, even in states where local rules stretch further. Do not import your clinical placement's local practice into an exam answer.
Using it to prioritise
Scope is a delegation filter before it is a prioritisation tool. When you are assigning tasks across an RN, an LPN, and unlicensed assistive personnel, ask scope first, then stability. A stable patient needing a routine dressing change can go to the LPN. A patient requiring first assessment after a change in condition stays with the RN, regardless of how busy the assignment looks, because assessment and clinical judgement sit inside RN scope.
Once scope has narrowed the field, use acuity and predictability to finish the assignment. Tasks with a predictable outcome and low risk of complication delegate more freely; tasks requiring ongoing judgement do not delegate at all, even to a highly experienced LPN or UAP. Scope answers who is allowed to act. Acuity answers who should act first among those who are allowed.
Traps in exam wording
Watch for questions that dress up an RN-only task as routine. Teaching a new diagnosis, interpreting an abnormal lab value, or making the first call to a physician about a change in condition all sound procedural but require clinical judgement, which places them inside RN scope even when an LPN is physically capable of the action. The exam rewards spotting the judgement component, not the mechanical steps.
The reverse trap appears too: a question implies an LPN cannot perform a task the practice act generally allows, such as administering most IM and oral medications or reinforcing patient teaching already given by the RN. If an answer choice restricts the LPN further than a reasonable practice act would, treat that restriction with suspicion. The safest read is the one consistent with the federal floor described above, not the most cautious-sounding option.
Examples from practice
An LPN can reinforce discharge teaching an RN has already delivered, take vital signs, administer most scheduled oral and IM medications, and perform routine dressing changes on a stable wound. An LPN generally cannot perform the admission assessment, develop or revise the plan of care, administer IV push medications in most states, or take a verbal order.
An RN can delegate the blood glucose check to unlicensed staff but must interpret the result and decide on intervention. An RN cannot delegate the initial assessment of a patient returning from surgery, even to an experienced LPN, because that assessment requires the clinical judgement that defines RN scope. When practice examples feel ambiguous, default to the judgement question: does this step require interpreting data and deciding, or does it require executing a known, stable instruction.
Summary
Scope of practice is set by state law, narrowed but never widened by employer policy, and it separates who may legally act from who is skilled enough to. LPN scope varies meaningfully by state, so treat any exam question as testing the common floor, not a specific jurisdiction's ceiling.
Use scope to filter delegation decisions first, then rank remaining tasks by acuity. On the exam, favour answers that keep clinical judgement, first assessments, and care planning with the RN, and be sceptical of any option that either expands an LPN's authority into judgement territory or restricts it below what most practice acts allow.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our safe and effective care practice questions are the closest set to what this page covers.
One question from the safe and effective care set
A nurse on a medical unit receives report on four clients. Which client should the nurse assess first?
Rationale
Prioritization items are airway, breathing, circulation, in that order — the ranking survives every rewording. Audible gurgling around a fresh tracheostomy is a partially obstructed airway and it is the only option that can kill the client in the next few minutes. Fever, post-op pain, and a glucose of 232 are all real problems that need the nurse, just not first.
Answer: C
Common questions
Can an LPN take a telephone order from a physician?
In most states, no. Taking and transcribing verbal or telephone orders generally requires the clinical judgement associated with RN scope, so the safe exam answer routes that task to the RN even though local facility practice sometimes varies.
Does scope of practice change between states if a nurse holds a compact license?
A multistate compact license lets a nurse practise across participating states without a separate license in each, but it does not harmonise scope. The nurse practice act of the state where care is delivered still governs what that nurse may do.
If my facility policy allows a task, does that mean it's in scope?
Not necessarily. Facility policy can restrict scope below what the practice act permits, but it cannot grant authority the practice act does not already allow. Check the practice act first.
How does the NCLEX handle scope questions if states disagree?
The exam is written to the floor of practice common across all states, not to any single state's expanded allowances. When a question tests LPN versus RN scope, choose the answer that would hold true regardless of jurisdiction.
Is scope of practice the same as a job description?
No. A job description is an employer document describing expected duties within legal scope. Scope of practice is the legal ceiling set by the state board of nursing, and a job description cannot expand beyond it.
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