N420 Module 8 DKA and HHS Compared Example

Reviewed by Maren Hollowell, MSN, RN Aspen University Updated September 2026

This N420 Module 8 sample paper compares diabetic ketoacidosis and hyperosmolar hyperglycemic state through two composite patients admitted to one step-down unit on the same night: a 24-year-old whose insulin pump tubing kinked during a stomach virus and a 79-year-old who had grown thirsty and confused over a week. It closes Adult Health IV in the Aspen University pre-licensure BSN program, where endocrine emergencies finish the catalog content. A table sets each patient's values against the 2024 consensus criteria, from a glucose of 412 with a pH of 7.14 to a glucose of 968 with an osmolality of 352. The paper explains fluids first, the potassium rule before insulin, why a normal potassium can hide a deficit, slower correction in HHS, complications, resolution and teaching. Aspen BSN students see two crises that look alike told apart.

CourseN420 Adult Health IV
ModuleModule 8
Paper typeComparison paper
LengthAbout 1,044 words, 6 pages
FormatAPA 7 student paper
SchoolAspen University
ProgramPre-licensure BSN
UpdatedSeptember 2026

Free sample paper for N420 Module 8

1

Two Admissions, One Night: Nursing Priorities in Diabetic Ketoacidosis and Hyperosmolar Hyperglycemic State Compared

Student Name

Pre-licensure BSN Program, Aspen University

N420: Adult Health IV

Instructor Name

Month Day, Year

What this page is doingThe title sets two patients side by side, which is how the comparison is built, and names both crises in full. APA 7 student title page.
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Two Admissions, One Night: Nursing Priorities in Diabetic Ketoacidosis and Hyperosmolar Hyperglycemic State Compared

Diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS) are both emergencies of high blood glucose, but they develop differently, affect different patients and need different emphasis in nursing care. On one night, a step-down unit admitted two composite patients. Mr. J., 24, has type 1 diabetes and an insulin pump whose tubing had kinked while he was sick with a stomach virus. Mrs. W., 79, has type 2 diabetes and had been drinking little and becoming confused for a week. This paper compares their crises and the nursing priorities for each. Both patients are illustrative composites.

How Each Crisis Develops

DKA results from a severe lack of insulin. Without insulin, the body breaks down fat into ketones, which cause acidosis, while glucose rises and pulls water and electrolytes into the urine. It develops over hours, often in younger people with type 1 diabetes, and causes vomiting, abdominal pain and rapid deep breathing. HHS develops over days in people who still make some insulin, enough to prevent ketosis but not to control glucose. Glucose climbs very high, profound dehydration follows, and blood becomes concentrated, which affects the brain (Umpierrez et al., 2024).

Diagnostic Criteria

The 2024 consensus report updated the criteria.

FeatureDKAHHSMr. J.Mrs. W.
Glucose200 mg/dL or higher, or known diabetes600 mg/dL or higher412968
KetonesBeta-hydroxybutyrate 3.0 mmol/L or higherNot significantly raised5.80.9
Acid-basepH below 7.3 and/or bicarbonate below 18pH 7.3 or higher, bicarbonate 15 or higherpH 7.14, bicarbonate 9pH 7.34, bicarbonate 20
OsmolalityVariableEffective osmolality above 300Normal range352
What this page is doingPlacing each patient's values beside the criteria shows the diagnosis is reasoned from data, and the lower DKA glucose threshold reflects the 2024 update.
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Fluids First for Both

Both patients are dehydrated, and fluid replacement is the first treatment. Mr. J. may have lost 5 to 7 liters and Mrs. W. even more relative to her size, but her age and heart make rapid fluid dangerous. The nurse gives the ordered isotonic fluid, monitors lung sounds, oxygen saturation and urine output, and for Mrs. W. watches especially for signs of fluid overload. Glucose often falls substantially with fluid alone, particularly in HHS.

Insulin and the Potassium Rule

Insulin drives potassium into cells, so the potassium level must be known before insulin starts. The consensus report advises holding insulin and replacing potassium first when the level is below 3.5 mmol/L (Umpierrez et al., 2024). Mr. J.'s potassium was 5.1 despite a total body deficit, so an insulin infusion began at the ordered rate, typically 0.1 units per kilogram an hour. His potassium was checked every two hours and replaced as it fell. When his glucose reached about 250, dextrose was added to the fluids so insulin could continue until the ketoacidosis cleared. Mrs. W. needed less insulin, and her team started it only after fluids had begun to lower her glucose.

What this page is doingExplaining why potassium is checked before insulin, and why dextrose is added while insulin continues, shows the reasoning behind the protocol rather than its steps alone.
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Why Mr. J.'s Potassium Looked Normal

Mr. J. had lost large amounts of potassium in his urine and vomit, yet his first level was 5.1. Acidosis and missing insulin push potassium from inside cells into the circulation, which makes the measured level overstate what the body holds. As insulin and fluids correct the acidosis, potassium moves back into cells and the blood level can fall quickly (Dhatariya et al., 2020). This is why the nurse checks potassium every two hours, keeps him on a cardiac monitor and has replacement ready before it is needed.

Why HHS Needs Slower Correction

Mrs. W.'s blood is concentrated, and her brain cells have adapted to it. Lowering glucose and osmolality too fast can shift water into brain cells. The nurse follows ordered targets for gradual reduction, checks her neurological status each hour, and reports any worsening of confusion, a headache or a seizure. Because she is older, immobile and dehydrated, she is also at high risk for pressure injury and blood clots, and prevention begins on admission.

Monitoring Compared

Mr. J. needs hourly glucose, two-hourly potassium and frequent ketone and venous pH checks, with close watching for hypoglycemia and low potassium as treatment works. Mrs. W. needs hourly glucose, frequent sodium and osmolality checks, hourly neurological assessments and careful fluid balance. Both need strict intake and output and cardiac monitoring for potassium effects.

Complications to Watch For

Treatment carries its own risks. For Mr. J., the main dangers are low glucose and low potassium as the insulin infusion works, and a return of ketoacidosis if the infusion stops too early. For Mrs. W., the dangers are fluid overload, a change in consciousness if correction is too fast, blood clots from dehydration and immobility, and pressure injury. For both, the nurse also looks for the trigger. Mr. J.'s was a kinked pump line during an illness; Mrs. W.'s turned out to be a urinary tract infection, which needed treatment of its own.

What this page is doingListing the complications of treatment separately for each patient shows that the comparison continues after the diagnosis is made.
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Resolution and Transition

Mr. J.'s DKA resolved in 14 hours when his ketones fell below 0.6 mmol/L and his pH rose above 7.3. Before the infusion stopped, the nurse confirmed that subcutaneous basal insulin had been given one to two hours earlier, because stopping the drip without it can bring ketoacidosis back. Mrs. W. improved over two days as her osmolality normalized and her confusion cleared.

Teaching Before Discharge

Mr. J.'s teaching focused on sick-day rules: check glucose and ketones every few hours when ill, never stop insulin, change the pump site if glucose rises unexpectedly and keep backup pens. Mrs. W.'s teaching involved her daughter: drinking fluids, recognizing early thirst and confusion, and a follow-up plan for her glucose control. Both crises are largely preventable, and teaching is where prevention begins (Harding et al., 2023). The nurse used teach-back with both, asking Mr. J. to describe what he would do the next time he vomited and asking Mrs. W.'s daughter how she would know her mother was becoming dry.

Conclusion

Mr. J. and Mrs. W. arrived the same night with high glucose, but their crises differed in speed, cause, acid-base state and risk. Fluids came first for both. For Mr. J., insulin guided by potassium and continued until ketones cleared was the priority; for Mrs. W., slow, careful correction and neurological watching mattered most. Comparing them side by side shows why the nurse must know which crisis is in the bed.

References

Dhatariya, K. K., Glaser, N. S., Codner, E., & Umpierrez, G. E. (2020). Diabetic ketoacidosis. Nature Reviews Disease Primers, 6, Article 40. https://doi.org/10.1038/s41572-020-0165-1

Harding, M. M., Kwong, J., Hagler, D., & Reinisch, C. (2023). Lewis's medical-surgical nursing: Assessment and management of clinical problems (12th ed.). Elsevier.

Umpierrez, G. E., Davis, G. M., ElSayed, N. A., Fadini, G. P., Galindo, R. J., Hirsch, I. B., Klonoff, D. C., McCoy, R. G., Misra, S., Gabbay, R. A., Bannuru, R. R., & Dhatariya, K. K. (2024). Hyperglycemic crises in adults with diabetes: A consensus report. Diabetes Care, 47(8), 1257-1275. https://doi.org/10.2337/dci24-0032

Reading the N420 Module 8 assignment instructions

Endocrine emergencies end the N420 description in Aspen's catalog, and this example was fitted to that closing topic because the actual module prompt stays in the classroom. A comparison paper normally asks you to explain how each condition develops, how they differ in presentation and laboratory findings, and how nursing priorities differ, sometimes through a table or paired cases. Check whether your instructor expects the 2024 consensus criteria or an older textbook version, whether insulin and potassium protocols should be described in detail, and whether discharge teaching is required. Confirm whether two patients or one comparison table is preferred, and how many sources you need. Some courses also want the triggers for each crisis discussed.

How the N420 Module 8 example is put together

Twelve sections and one criteria table carry roughly 1,050 words. It opens with two admissions on one night. A section explains how each crisis develops. The table sets criteria beside each patient's values. Fluids first applies to both, with caution for the older patient. Insulin and the potassium rule are explained with reasons, then a section on why the younger man's potassium looked normal. Slower correction in HHS, monitoring compared and complications to watch for follow. Resolution covers the overlap of basal insulin before the drip stops, and teaching and a conclusion finish the comparison. Each section sets the two patients side by side instead of describing them separately.

Reading the N420 Module 8 grading rubric

Comparison papers are often graded on accurate differentiation, correct priorities for each condition, safety in insulin and electrolyte management, and teaching. Differentiation is precise, with current criteria and each patient's values in one table, and a margin note flags the 2024 change. Priorities are distinct for each patient. Safety is the paper's strength, since the potassium rule and the shift of potassium between cells and blood are explained, which another note highlights. Complications and resolution are specific. Teaching uses teach-back with both patients. Final marks reward APA citation of the consensus report, a disease review and the textbook, and a readable table. Naming a trigger for each patient adds depth instructors notice.

N420 Module 8 help: mistakes that cost marks

The most common error is describing DKA and HHS as the same crisis with different glucose levels. Explain the difference in insulin, ketones and timeline. Students also forget that potassium must be known before insulin starts, and that a normal first level can hide a large deficit. Another frequent mistake is stopping the insulin infusion without overlapping basal insulin, which can bring ketoacidosis back. In HHS, papers often correct too fast; mention gradual reduction and neurological checks. Finally, find the trigger for each patient, whether a failed pump or an infection. Treating the glucose without the cause invites a return visit. Write both patients' values in the same table so the differences stand out.

Write yours, or have the desk draft it

This paper is an original model document written by our desk, not a submitted student paper and not an official Aspen University document. Read it for the moves, then write your own to the instructions in your classroom. If you want one built to your exact prompt and rubric, the first custom sample is free and arrives in 24 to 48 hours.

More N420 and Pre-licensure BSN sample papers

N420 Module 8 questions, answered

What does N420 Module 8 usually ask for?

Aspen's N420 description includes endocrine emergencies, so a paper comparing DKA and HHS and their nursing priorities is a typical assignment. Check your classroom for the prompt.

What is the main difference between DKA and HHS?

DKA involves ketones and acidosis from a severe lack of insulin, while HHS involves very high glucose and severe dehydration with little or no ketosis. HHS develops more slowly.

Why is potassium checked before starting insulin?

Insulin moves potassium into cells and can drop the blood level quickly. If potassium is already low, insulin is held and potassium replaced first to prevent dangerous arrhythmias.

Where can I find a free N420 Module 8 sample paper?

Right on this page: the DKA and HHS comparison is reproduced in full, criteria table and margin notes included, at no cost. It is the last of the eight N420 samples on this site.

What are the 2024 criteria for DKA used in N420 Module 8?

A glucose reading at or above 200 mg/dL, or a history of diabetes, beta-hydroxybutyrate of 3.0 mmol/L or higher, and a pH below 7.3 or bicarbonate below 18.