| Course | HS200 Diseases of the Human Body |
|---|---|
| Unit | Unit 4 |
| Paper type | Sign and symptom worksheet |
| Length | About 600 words, 5 pages double-spaced |
| Format | APA 7 student paper |
| School | Purdue University Global |
| Program | BS in Health Science |
| Updated | October 2026 |
Free sample paper for HS200 Unit 4
What She Feels and What the Examiner Finds: A Unit 4 Sign and Symptom Worksheet for an Underactive Thyroid
[Student Name]
Purdue University Global
HS200: Diseases of the Human Body
Unit 4 Sign and Symptom Worksheet
[Instructor Name]
[Date]
The patient is composite; the review and textbook cited are real.
The Case
A composite 52-year-old woman reports eight months of tiredness, feeling cold when others are comfortable, constipation, weight gain of about 4 kg without eating more, dry skin, thinning hair and heavier menstrual periods. She says she feels slow and forgetful. On examination, her pulse is 56, her skin is dry and cool, her face looks puffy, her reflexes relax slowly after being tapped and her thyroid gland is slightly enlarged and firm. Blood tests show a high thyroid-stimulating hormone level and a low free thyroxine level, consistent with primary hypothyroidism, most often caused in the United States by autoimmune thyroiditis (Chaker et al., 2022).
Definitions
Symptoms are reported by the person who has them and cannot be seen directly by anyone else. A sign is something an examiner can observe or measure. Laboratory results are measured, so they belong with signs (Rogers, 2023).
What Thyroid Hormone Normally Does
Thyroid hormone sets the body's metabolic rate: how quickly cells use oxygen and fuel and produce heat. It also supports heart rate, gut movement, skin and hair renewal, nerve function and the breakdown of certain substances in tissues. When the hormone is low, these processes slow down, a pattern described in standard endocrinology references (Loscalzo et al., 2022).
Column 1: Symptoms, With Mechanism
1. Tiredness. Cells produce less energy when metabolism slows.
2. Feeling cold. Less heat is produced at a lower metabolic rate.
3. Constipation. Slower muscle activity in the gut moves contents more slowly.
4. Weight gain. Lower energy use, plus fluid held in tissues, adds weight without more eating.
5. Slowed thinking and forgetfulness. Brain cells depend on thyroid hormone for normal function.
6. Heavier periods. Low thyroid hormone alters the hormone signals that regulate the menstrual cycle and can affect clotting factors.
Column 2: Signs, With Mechanism
1. Pulse of 56. Thyroid hormone normally increases heart rate and the heart's response to adrenaline; less hormone slows it.
2. Dry, cool skin. Reduced metabolism lowers skin blood flow and sweat and oil production.
3. Puffy face. Substances called glycosaminoglycans build up in tissues when their breakdown slows, holding water and causing a firm swelling.
4. Slow reflex relaxation. Muscle contraction and relaxation slow when metabolism is low.
5. Enlarged, firm thyroid. Autoimmune inflammation and the pituitary's constant stimulation enlarge the gland.
6. High thyroid-stimulating hormone. The pituitary senses low thyroid hormone and releases more stimulating hormone, trying to push the gland to work harder.
7. Low free thyroxine. The gland cannot make enough hormone.
Every entry in both columns, from the cold hands to the slow reflexes, traces back to the same missing hormone and the same slowed metabolism.
Entries That Belong to Both Columns
Weight gain is reported by the patient but can also be measured, so it can be listed as a symptom and confirmed as a sign. The worksheet keeps it in the symptom column, where the patient raised it, and notes the measurement.
Why the Distinction Matters
Symptoms tell clinicians what bothers the patient and guide what to examine. Signs can be measured and followed over time to see whether treatment works. In this case, the thyroid-stimulating hormone level is the sign used to adjust treatment, while the patient's energy and cold tolerance show whether she feels better.
References
Chaker, L., Razvi, S., Bensenor, I. M., Azizi, F., Pearce, E. N., & Peeters, R. P. (2022). Hypothyroidism. Nature Reviews Disease Primers, 8, 30. https://doi.org/10.1038/s41572-022-00357-7
Loscalzo, J., Fauci, A. S., Kasper, D. L., Hauser, S. L., Longo, D. L., & Jameson, J. L. (Eds.). (2022). Harrison's principles of internal medicine (21st ed.). McGraw Hill.
Rogers, J. L. (Ed.). (2023). McCance & Huether's pathophysiology: The biologic basis for disease in adults and children (9th ed.). Elsevier.
What the HS200 Unit 4 assignment asks for
The fourth unit usually asks students to complete a worksheet that separates a case's findings into symptoms and signs and explains each one. Worksheets of two to four pages are common. Instructors expect correct classification, with laboratory results placed among signs because they are measured, and a mechanism for every entry. Many prompts center on one condition so that all findings can be traced to a common cause. Students are often asked to address findings that could fit either column. Defining the terms at the start helps show the classification rule being applied. A brief statement of why the distinction matters in practice often completes the worksheet.
Inside the HS200 Unit 4 example
The worksheet presents the case with history, examination and blood tests. Definitions follow, then a short explanation of what thyroid hormone normally does. Column one lists six symptoms, each with its mechanism, from reduced energy production to altered menstrual hormone signals. Column two lists seven signs, each with its mechanism, from a slower heart to the pituitary's rising stimulating hormone. The highlighted sentence ties both columns to one hormone. A section explains placing weight gain in the symptom column with a note about measurement, and a final section explains how signs are used to adjust treatment while symptoms show how the patient feels. Each mechanism fits in a single sentence beside its finding.
Reading the HS200 Unit 4 grading rubric
Sign and symptom worksheets are typically graded on correct classification, accurate mechanisms, completeness, handling of ambiguous findings and organization. Mechanisms often carry the most weight, since the unit tests understanding rather than sorting. Classification earns credit when the rule is stated and applied consistently, including laboratory results. Completeness rewards addressing every finding in the case. Ambiguous findings, such as weight gain, earn points when the choice is explained. Clean columns, clear headings and a citation for the condition's physiology complete the score. Worksheets that sort correctly but explain nothing usually receive partial credit. Some instructors check that each mechanism names what the hormone normally does, not just that it is low.
Common HS200 Unit 4 mistakes, and how to avoid them
A common mistake is placing pain or fatigue among signs because a clinician recorded them, when they are reported by the patient. Another is leaving laboratory results out of the worksheet altogether. Some students explain each finding with a vague phrase, such as "due to the thyroid," without naming what the hormone normally does. Others ignore findings that appear in only one column of the textbook. Mixing several conditions into one worksheet makes the mechanism hard to follow, and leaving out definitions makes the classification rule invisible. If your case describes a different condition, perhaps anemia or an overactive thyroid, send the findings, and we can sort and explain each one in two columns.
Get an HS200 Unit 4 example written to your instructions
Upload the worksheet template your HS200 section posted for Unit 4, the case or condition it names, and the rubric. Each cell is completed in the template's own columns and returned in 24-48h, with any case detail invented rather than drawn from a real chart. Nothing is charged for a first custom sample. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.
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HS200 Unit 4 questions, answered
Is pain a sign or a symptom?
A symptom, because only the person feeling it can report it, even when it is rated on a number scale. What an examiner can observe, such as guarding, a grimace or tenderness when a spot is pressed, counts as a sign. Many worksheets include pain precisely to test this, so a row that splits the two is worth the extra line.
Do laboratory results belong in the worksheet?
Usually yes, in the sign column, since they are measured rather than reported. Check whether the template has a separate diagnostics column first, because some sections keep tests apart from examination findings. Wherever a value goes, give it with its unit and the reference range from the case or textbook, since a number without a range cannot be read as high or low.
What if the case lists a finding the textbook does not mention?
Explain it from the mechanism if it can be explained, and say so plainly if it cannot. Composite cases sometimes include an unrelated finding to see whether the writer forces it into the disorder. Noting that a finding is probably unrelated, with a sentence of reasoning, is often worth more than an explanation stretched to cover it.
Where can I find a free HS200 Unit 4 sample paper?
This page presents the complete Unit 4 sign and symptom worksheet for hypothyroidism, linking every finding to one missing hormone.
Why is thyroid-stimulating hormone high when the thyroid is underactive?
The pituitary senses low thyroid hormone and releases more stimulating hormone to push the gland harder, so a high level signals a gland that cannot keep up.