Collaborative Practice: An INR of 6.2, a Six-Month Benzodiazepine Favor, and a Family Request
You are a pharmacist with prescriptive authority practicing under a written collaborative practice agreement with a six-physician primary care group in Albuquerque. The agreement authorizes you to manage warfarin therapy, adjust levothyroxine using defined lab triggers, initiate statin therapy, and administer long-acting injectable antipsychotics at the clinic; it lists referral criteria and requires documentation of every encounter. Today: a 68-year-old with atrial fibrillation on warfarin has an INR of 6.2 and no bleeding, and was last seen four months ago; the clinic manager asks you to "just renew" a patient's alprazolam for six months because the prescribing physician is on maternity leave; and your own mother asks you to increase her levothyroxine dose.
1. How do you handle the INR of 6.2 within your collaborative practice agreement, and when must you hand off?
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Your authority comes from the collaborative practice agreement plus the Board's rules on pharmacist prescriptive authority - not from your clinical comfort.
Process:
- Confirm the result; repeat the INR if there is any reason to doubt it. Review interacting drugs (recent antibiotics, amiodarone, NSAIDs), diet, alcohol, adherence, and fall risk.
- Apply the protocol exactly. Most warfarin protocols direct holding doses and a defined recheck interval for an INR in this range without bleeding, reserving vitamin K for higher values or any bleeding. If your protocol specifies a threshold, follow it; do not improvise a vitamin K order because it "seems safer."
- The four-month gap matters. If the protocol requires monitoring or a visit within a set interval and that has lapsed, you cannot re-authorize long-term therapy on a single value. Contact the collaborating physician and document the plan.
- Refer the same day for bleeding, a rapidly rising INR, or any value outside protocol limits - that is a handoff, not a failure.
- Document INR, symptoms, intervention, follow-up date, prescriber contact, and patient education. The agreement requires it, and the documentation is what proves you stayed in scope.
2. The clinic manager wants a six-month alprazolam renewal signed by you because the physician is on leave. What do you do?
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Three independent reasons the answer is no.
- The agreement defines your authority. Your prescriptive authority exists only for the drugs, conditions, and protocols the agreement authorizes and Board rules permit. Unless the agreement expressly covers benzodiazepine continuation, renewing alprazolam - let alone for six months - takes you outside it. You cannot expand your own scope because the clinic is short-staffed.
- Controlled substance limits. Alprazolam is Schedule IV: a prescription may be refilled no more than five times and no later than six months after the date of issue. A "six-month renewal" is not something you can create by fiat; a prescriber must issue it.
- Absent-prescriber substitution. Covering a maternity leave by having the pharmacist prescribe outside the agreement is precisely the arrangement boards and inspectors look for.
What you can do: contact the covering or on-call physician, arrange a plan for this patient (including a bridge or taper if abrupt discontinuation is a seizure or withdrawal risk), and document the contact. A withdrawal risk is a reason to escalate urgently, not a reason to authorize it yourself.
3. Your mother asks you to increase her levothyroxine dose. How do you respond, and what do you document?
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Decline, and do it in a way that is documented and respectful.
- Treating a close family member compromises the objectivity that professional standards require, and board rules and institutional policies prohibit or strongly discourage prescribing for oneself or an immediate family member absent a genuine emergency.
- Holding prescriptive authority makes the restraint more important, not less: your file will show a levothyroxine adjustment for a patient who shares your address.
- Refer her to another pharmacist under the agreement or to a collaborating prescriber, and hand over the TSH values, dose history, and symptoms so the next clinician is not starting blind.
- Record the referral, not a dose adjustment.
If a true emergency arises - not a dose tweak - provide the minimum necessary care, document why it could not wait, and transfer care promptly.