| Course | NU 636 Advanced Pharmacology |
|---|---|
| Unit | Unit 3 |
| Paper type | Pharmacotherapy plan with titration |
| Length | About 1,080 words, 6 pages |
| Format | APA 7 student paper |
| School | Herzing University |
| Program | MSN Family Nurse Practitioner |
| Updated | October 2026 |
Free sample paper for NU 636 Unit 3
Pharmacotherapy Plan: Starting and Titrating Levothyroxine in a 67-Year-Old Woman With Coronary Artery Disease
Student Name
Department of Nursing, Herzing University
NU 636: Advanced Pharmacology
Instructor Name
February 4, 2026
Pharmacotherapy Plan: Starting and Titrating Levothyroxine in a 67-Year-Old Woman With Coronary Artery Disease
The Patient and the Target
Mrs. D., a composite 67-year-old retired bookkeeper, has overt primary hypothyroidism: thyroid-stimulating hormone (TSH) of 14.8 mIU/L on two occasions eight weeks apart, a low free thyroxine of 0.6 ng/dL, and positive thyroid peroxidase antibodies, consistent with autoimmune thyroiditis. She reports fatigue, constipation, cold intolerance, and dry skin over the past year. She has stable coronary artery disease with a stent placed five years ago and occasional exertional angina controlled with metoprolol succinate 50 mg daily, aspirin 81 mg daily, and atorvastatin 80 mg daily. She also takes calcium carbonate 600 mg twice daily and omeprazole 20 mg daily. She weighs 150 pounds (68 kg).
Target: a TSH in the laboratory reference range, aiming for roughly 1.0 to 4.0 mIU/L, within four to six months, without provoking angina, palpitations, or new arrhythmia. A somewhat higher TSH within the reference range is acceptable in an older adult with heart disease if symptoms have resolved (Jonklaas et al., 2014). Symptom improvement is a secondary target, judged by her report of energy and bowel habits at each visit.
Baseline Before the First Dose
Measured now, and tracked later: TSH and free thyroxine, already available; resting heart rate and blood pressure, because levothyroxine speeds the heart and increases how much oxygen the heart muscle uses; a resting electrocardiogram, to document her baseline rhythm before a drug that can precipitate atrial fibrillation; a lipid panel, because hypothyroidism raises low-density lipoprotein cholesterol and the value will fall as she becomes euthyroid, which matters for interpreting her statin response; and weight. Each baseline measure is one the plan will return to; a measure that will never be compared is not taken.
Initiation
Levothyroxine 25 mcg by mouth once daily, taken with water on an empty stomach 30 to 60 minutes before breakfast. The usual full replacement dose for an adult is about 1.6 mcg/kg per day, which for Mrs. D. would be roughly 100 to 112 mcg (Jonklaas et al., 2014). That dose is deliberately not used. In older adults and in those with coronary artery disease, a rapid rise in thyroid hormone increases heart rate, contractility, and myocardial oxygen consumption, which can provoke angina or arrhythmia in a heart whose supply is already limited (Chaker et al., 2017). Starting at 25 mcg and titrating slowly trades speed for safety, and in a patient with a stent and exertional angina that trade is correct.
Levothyroxine alone is chosen over combination therapy with liothyronine. Levothyroxine is converted to active triiodothyronine in the tissues as needed, gives stable hormone levels because of its long half-life, and is the standard of care; combination therapy has not shown consistent benefit and produces peaks of triiodothyronine that are least welcome in a patient with coronary disease (Jonklaas et al., 2014). Absorption is addressed at the start, not after a disappointing TSH. Her calcium carbonate can bind the hormone inside the intestine, so the two are taken at least four hours apart; she will take her calcium with lunch and dinner. Omeprazole reduces gastric acid, which reduces levothyroxine absorption; it is continued, because she needs it for reflux, but its effect will be absorbed into the titration rather than ignored. She is asked to take the tablet at the same time every day and to use the same manufacturer where possible.
Titration Schedule
Step 1, week 6: check TSH and free thyroxine, heart rate, and ask specifically about chest pain, palpitations, and exercise tolerance. TSH needs about six weeks to reflect a dose change because levothyroxine has a half-life of about a week and TSH lags behind thyroid hormone levels (Rosenthal & Burchum, 2021). If TSH remains above target and she has no new angina or palpitations, increase to 50 mcg daily.
Step 2, week 12: repeat the same checks. If TSH is still above target, increase by 12.5 to 25 mcg, to 62.5 or 75 mcg daily, choosing the smaller step if her resting heart rate has risen by more than 10 beats per minute from baseline or if she reports any change in her angina pattern.
Step 3, weeks 18 to 24: repeat. Continue increases of 12.5 to 25 mcg every six to eight weeks until TSH is within target. Her expected final dose, given her weight and the partial effect of omeprazole, is somewhere between 75 and 112 mcg, but the dose is chosen by her TSH and her tolerance, not by that estimate.
Adverse effect management is built into each step. New or worsening angina at any step means holding the last increase, returning to the previous dose, and contacting her cardiologist; the target is then relaxed rather than pursued. Palpitations with a resting heart rate above 100 prompt an electrocardiogram to exclude atrial fibrillation. Metoprolol already blunts the heart rate response, which is helpful, but it can also mask early symptoms, so the heart rate check at each visit is not optional.
Nonpharmacological and Practical Elements
She is told that improvement in energy usually takes several weeks and that dry skin and constipation may take months to resolve. She is asked to report missed doses honestly; because of the long half-life, an occasional missed dose can be taken later the same day or even doubled the next day, which is a reassuring message for an older patient worried about errors. Cost is checked: generic levothyroxine is inexpensive, and her plan covers it. Her ability to attend laboratory visits every six weeks is confirmed; she has a daughter who drives her.
Once Stable, and the Failure Point
Once TSH is in target on two consecutive checks, monitoring moves to every six months for a year, then yearly. Her lipid panel is repeated three months after reaching target, and her statin dose is reviewed in light of the new values.
Failure point: if TSH remains above 10 mIU/L after six months despite reported adherence and a dose above 1.6 mcg/kg, the plan is judged not to be working as designed. The next steps are to confirm adherence, review timing with food and interacting drugs, consider whether omeprazole can be reduced, and evaluate for malabsorption, including celiac disease, which is associated with autoimmune thyroid disease (Chaker et al., 2017). If angina limits titration before TSH reaches target, the plan instead settles for the highest tolerated dose, and the case is discussed with cardiology about whether her coronary disease needs further treatment first.
References
Chaker, L., Bianco, A. C., Jonklaas, J., & Peeters, R. P. (2017). Hypothyroidism. The Lancet, 390(10101), 1550-1562. https://doi.org/10.1016/S0140-6736(17)30703-1
Jonklaas, J., Bianco, A. C., Bauer, A. J., Burman, K. D., Cappola, A. R., Celi, F. S., Cooper, D. S., Kim, B. W., Peeters, R. P., Rosenthal, M. S., & Sawka, A. M. (2014). Guidelines for the treatment of hypothyroidism: Prepared by the American Thyroid Association Task Force on Thyroid Hormone Replacement. Thyroid, 24(12), 1670-1751. https://doi.org/10.1089/thy.2014.0028
Rosenthal, L. D., & Burchum, J. R. (2021). Lehne's pharmacotherapeutics for advanced practice nurses and physician assistants (2nd ed.). Elsevier.
The Herzing NU 636 Unit 3 instructions
The Unit 3 instructions ask for a pharmacotherapy plan that covers a full course of treatment for a chronic condition: goals, baseline assessment, initiation, titration, monitoring and long-term follow-up. Expect to justify the starting dose using the patient's age, comorbidities and other medications. A titration schedule with intervals, tests and decision points is usually central to the grade. Nonpharmacological and practical elements, such as how and when to take the drug and what to expect, are often required. The plan should say what stable treatment looks like and when to change course or refer. Cite current guidelines and a pharmacology text in APA 7. Length is set in the classroom. Work from a composite or supplied case, and keep the plan specific enough that another prescriber could follow it without guessing at the next step.
Inside the NU 636 Unit 3 example
The plan begins with the diagnosis confirmed on two thyroid tests eight weeks apart and a stated target range. The baseline section lists what is measured before the first dose, including heart rate and blood pressure, because levothyroxine increases cardiac oxygen demand. Initiation gives 25 mcg daily taken with water on an empty stomach and explains why the full calculated dose is avoided in coronary disease. The titration schedule is written as numbered steps every six weeks, each with tests, specific questions about chest pain and palpitations, and the dose increase if targets are not met. The practical section addresses separating the dose from calcium and iron and setting expectations that energy improves over weeks. The final section moves monitoring to six months once stable and names the failure point for referral.
NU 636 Unit 3 rubric: what full points look like
A Herzing rubric for a pharmacotherapy plan generally rewards treatment goals, initiation, titration and monitoring, patient education, follow-up and evidence. Goal points require a measurable target appropriate for the patient. Initiation is credited when the starting dose is justified by patient factors and stated in full. Titration and monitoring are often the heaviest criteria; markers look for intervals that match the drug's pharmacokinetics, named tests and clear decision rules at each step. Education points go to specific instructions on administration and expected timelines. Follow-up is scored on what happens once treatment is stable and when to refer. Current guidelines, properly referenced, earn the evidence points, and the writing line looks at organization by phase, so a reader can find the next step quickly.
NU 636 Unit 3 help before you submit
Plans most often lose points by giving the starting dose and stopping there, with no titration schedule. Students also choose intervals that do not fit the drug, such as rechecking thyroid tests after two weeks when about six are needed to reach steady state. The reason for a low starting dose in older adults or heart disease is frequently left out. Administration details, like taking levothyroxine apart from calcium or iron, are commonly missing and are often on the rubric. Another gap is the absence of an endpoint or failure point. Some papers list monitoring tests without saying what result would change the dose. Finally, avoid listing several possible drugs; this unit expects a committed plan for one agent, explained over time.
Get a NU 636 Unit 3 example written to your instructions
Send the Unit 3 instructions and the rubric from your NU 636 classroom, along with the case and any target your instructor has set. We write a custom example against those criteria, with baselines, a titration schedule and a defined failure point, and return it in 24 to 48 hours. The first custom sample is free.
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- NU 636 Unit 8: Comprehensive case study
- NU 623 Unit 3: Chronic disease management plan
- NU 627 Unit 3: Deprescribing review
- NU 631 Unit 3: Preconception counseling plan
- NU 632 Unit 3: Developmental screening and referral
NU 636 Unit 3 questions, answered
How far ahead should a pharmacotherapy plan go?
Far enough that a reader can see the second and third decisions, not only the first. In practice that means through titration to target, or through the point where the plan admits the agent has failed. Check whether your instructions set a horizon. Where they do not, a plan that stops at initiation is the single most common reason this deliverable underperforms.
Does the plan need non-drug elements?
In most sections yes, and they should appear where evidence supports them rather than as a courtesy paragraph. Adherence support, monitoring the patient performs, technique for an inhaled or injected agent and lifestyle measures with documented effect all belong. What reads poorly is a generic wellness paragraph bolted on at the end with nothing tying it to the plan above.
How is a plan different from the rationale earlier in the course?
A rationale defends a choice between agents at one moment. A plan takes the chosen agent forward through time, with baselines, titration steps, monitoring intervals and an exit. The selection argument shrinks to a paragraph here, and everything that would have been a conclusion there becomes the starting line. Submitting one for the other loses criteria in both.
Where can I find a free NU 636 Unit 3 sample paper?
This page gives the full NU 636 Unit 3 levothyroxine plan for free, from the baseline measurements through the titration steps and the failure point. If your case uses a different drug or condition, request a custom plan and you will have it free within about 48 hours.
Why start a low dose of levothyroxine in an older adult with heart disease?
Levothyroxine raises heart rate and cardiac oxygen demand. In older adults with coronary disease a full dose can trigger angina or arrhythmia, so prescribers often start around 25 mcg daily and increase slowly every six weeks while checking symptoms and thyroid tests.