NURS 6512 | i-Human Case: Chronic-on-Acute Lumbar Strain | 54-Year-Old Male
NURS 6512 | Advanced Health Assessment | Graduate-Level i-Human
Case Study
Chronic-on-Acute Lumbar Strain in a 54-Year-Old Male
Comprehensive 30-Page Study Guide | Case Analysis · SOAP Note · Differential Diagnosis · Management Plan
· Practice Questions
Page 1 – Case Overview & Graduate Learning Objectives
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
,NURS 6512 | i-Human Case: Chronic-on-Acute Lumbar Strain | 54-Year-Old Male
This i-Human case presents a 54-year-old male construction foreman with a chief complaint of
worsening low back pain superimposed on a long-standing history of lumbar strain. The case is
designed for graduate-level Advanced Practice Registered Nurses (APRNs) in NURS 6512 Advanced
Health Assessment to integrate comprehensive history-taking, physical examination, diagnostic
reasoning, and evidence-based management within the framework of the chronic-on-acute pain
paradigm.
1.1 Patient Snapshot
Item Details
Name / ID Mr. D.M. — 54-year-old male (identity protected)
Chief Complaint "My back has been killing me for years, but this week it got way
worse after I twisted wrong on the job."
Setting Outpatient primary care / urgent care clinic — APRN-led visit
Course Level NURS 6512 Advanced Health Assessment (Graduate / MSN /
FNP track)
i-Human Module Week #9 — Musculoskeletal & Neurological Case Integration
Primary Diagnosis Chronic-on-Acute Lumbar Strain (ICD-10: M54.5 — Low back
pain; S39.012A — Strain of muscle, fascia and tendon of lower
back, initial encounter)
Key Themes Chronic pain assessment, occupational history, red flag screening,
APRN scope of practice, multimodal management, opioid
stewardship
1.2 Graduate Learning Objectives
Upon completing this case, the APRN student will be able to:
1. Conduct a comprehensive, graduate-level health history using advanced interview techniques for a
patient presenting with chronic-on-acute musculoskeletal pain.
2. Perform and document a focused and complete physical examination of the lumbar spine,
incorporating provocative maneuvers (SLR, FABER, Patrick's, Waddell's signs) with clinical
interpretation.
3. Generate a prioritized differential diagnosis list distinguishing benign mechanical etiologies from
serious/dangerous pathologies using evidence-based red flag criteria.
4. Interpret relevant diagnostic studies (imaging, laboratory, electrodiagnostic) appropriate to the clinical
presentation.
5. Construct a comprehensive SOAP note and management plan integrating pharmacological and non-
pharmacological strategies consistent with current clinical practice guidelines (ACP, AAFP, CDC).
6. Apply opioid prescribing stewardship principles and universal precautions for pain management in the
primary care setting.
7. Demonstrate interprofessional collaboration and appropriate referral decision-making.
8. Demonstrate culturally competent care and address social determinants of health affecting this
patient's presentation and management.
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
,NURS 6512 | i-Human Case: Chronic-on-Acute Lumbar Strain | 54-Year-Old Male
1.3 Case Context: Chronic-on-Acute Lumbar Strain
Chronic-on-acute low back pain (LBP) is one of the most common and clinically challenging
presentations in primary care. It represents an acute exacerbation — often from a specific mechanism
of injury — superimposed upon a pre-existing chronic pain condition. This presentation demands that
the APRN distinguish new structural injury from flare of known pathology, screen for dangerous
etiologies (malignancy, infection, fracture, cauda equina), and craft a management plan that addresses
BOTH the acute and chronic pain dimensions.
▶ Key Point
Chronic-on-Acute LBP: Requires assessment of BOTH the acute exacerbating event AND the chronic baseline
condition.
The APRN must determine: Is this a new injury superimposed on a chronic condition, OR a worsening of the
underlying chronic pathology?
Always re-screen for red flags at EVERY encounter — chronic patients can develop new dangerous etiologies.
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
, NURS 6512 | i-Human Case: Chronic-on-Acute Lumbar Strain | 54-Year-Old Male
Page 2 – Subjective: Chief Complaint & History of Present
Illness (HPI)
2.1 Chief Complaint
"My back has been killing me for years, but this week it got way worse after I twisted wrong on the job
site. I can barely walk this morning."
2.2 HPI — OLDCARTS Framework (Graduate-Level Documentation)
Element Patient Response Chronic Component Acute-on-Chronic Analysis
Onset Acute worsening 4 8 years of progressive New mechanism of injury (rotation
days ago while lumbar pain from under load) superimposed on
rotating to grab occupational demands degenerative baseline
heavy rebar;
chronic LBP
present for 8+
years
Location Central and Has had bilateral Acute exacerbation localized to
bilateral lower paraspinal discomfort lumbar region; no current
back; right > left; chronically dermatomal leg radiation (important
does NOT radiate negative)
below the knee
currently
Duration Acute phase: 4 Chronic: 8 years waxing Acute-on-chronic — two temporally
days; Chronic and waning distinct components
phase: 8+ years
Character Acute: sharp, Chronic: stiffness worst Acute: nociceptive, mechanical;
stabbing, 'catching' in AM (> 30 min), eases Chronic: degenerative mechanical
pain with with movement with possible myofascial component
movement;
Chronic: deep, dull,
aching, stiffness
Aggravating Bending forward, Chronic: end of Flexion-loading mechanics aggravate
rotation, prolonged workday, prolonged disc; rotation injuries paraspinal
standing, lifting; physical labor muscles and facets
morning stiffness;
stairs
Relieving Rest in lateral Has used ibuprofen Fetal position decompresses lumbar
decubitus (fetal PRN for years; heat disc — classic mechanical pattern
position); heat helpful
packs; OTC
ibuprofen (partial
relief only)
Timing Constant with acute Perennial — managed Chronic-on-acute pattern; no
spikes with with OTCs; no period of remission suggests advanced
movement; worse true remission in 3 degenerative disease
years
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
NURS 6512 | Advanced Health Assessment | Graduate-Level i-Human
Case Study
Chronic-on-Acute Lumbar Strain in a 54-Year-Old Male
Comprehensive 30-Page Study Guide | Case Analysis · SOAP Note · Differential Diagnosis · Management Plan
· Practice Questions
Page 1 – Case Overview & Graduate Learning Objectives
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
,NURS 6512 | i-Human Case: Chronic-on-Acute Lumbar Strain | 54-Year-Old Male
This i-Human case presents a 54-year-old male construction foreman with a chief complaint of
worsening low back pain superimposed on a long-standing history of lumbar strain. The case is
designed for graduate-level Advanced Practice Registered Nurses (APRNs) in NURS 6512 Advanced
Health Assessment to integrate comprehensive history-taking, physical examination, diagnostic
reasoning, and evidence-based management within the framework of the chronic-on-acute pain
paradigm.
1.1 Patient Snapshot
Item Details
Name / ID Mr. D.M. — 54-year-old male (identity protected)
Chief Complaint "My back has been killing me for years, but this week it got way
worse after I twisted wrong on the job."
Setting Outpatient primary care / urgent care clinic — APRN-led visit
Course Level NURS 6512 Advanced Health Assessment (Graduate / MSN /
FNP track)
i-Human Module Week #9 — Musculoskeletal & Neurological Case Integration
Primary Diagnosis Chronic-on-Acute Lumbar Strain (ICD-10: M54.5 — Low back
pain; S39.012A — Strain of muscle, fascia and tendon of lower
back, initial encounter)
Key Themes Chronic pain assessment, occupational history, red flag screening,
APRN scope of practice, multimodal management, opioid
stewardship
1.2 Graduate Learning Objectives
Upon completing this case, the APRN student will be able to:
1. Conduct a comprehensive, graduate-level health history using advanced interview techniques for a
patient presenting with chronic-on-acute musculoskeletal pain.
2. Perform and document a focused and complete physical examination of the lumbar spine,
incorporating provocative maneuvers (SLR, FABER, Patrick's, Waddell's signs) with clinical
interpretation.
3. Generate a prioritized differential diagnosis list distinguishing benign mechanical etiologies from
serious/dangerous pathologies using evidence-based red flag criteria.
4. Interpret relevant diagnostic studies (imaging, laboratory, electrodiagnostic) appropriate to the clinical
presentation.
5. Construct a comprehensive SOAP note and management plan integrating pharmacological and non-
pharmacological strategies consistent with current clinical practice guidelines (ACP, AAFP, CDC).
6. Apply opioid prescribing stewardship principles and universal precautions for pain management in the
primary care setting.
7. Demonstrate interprofessional collaboration and appropriate referral decision-making.
8. Demonstrate culturally competent care and address social determinants of health affecting this
patient's presentation and management.
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
,NURS 6512 | i-Human Case: Chronic-on-Acute Lumbar Strain | 54-Year-Old Male
1.3 Case Context: Chronic-on-Acute Lumbar Strain
Chronic-on-acute low back pain (LBP) is one of the most common and clinically challenging
presentations in primary care. It represents an acute exacerbation — often from a specific mechanism
of injury — superimposed upon a pre-existing chronic pain condition. This presentation demands that
the APRN distinguish new structural injury from flare of known pathology, screen for dangerous
etiologies (malignancy, infection, fracture, cauda equina), and craft a management plan that addresses
BOTH the acute and chronic pain dimensions.
▶ Key Point
Chronic-on-Acute LBP: Requires assessment of BOTH the acute exacerbating event AND the chronic baseline
condition.
The APRN must determine: Is this a new injury superimposed on a chronic condition, OR a worsening of the
underlying chronic pathology?
Always re-screen for red flags at EVERY encounter — chronic patients can develop new dangerous etiologies.
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
, NURS 6512 | i-Human Case: Chronic-on-Acute Lumbar Strain | 54-Year-Old Male
Page 2 – Subjective: Chief Complaint & History of Present
Illness (HPI)
2.1 Chief Complaint
"My back has been killing me for years, but this week it got way worse after I twisted wrong on the job
site. I can barely walk this morning."
2.2 HPI — OLDCARTS Framework (Graduate-Level Documentation)
Element Patient Response Chronic Component Acute-on-Chronic Analysis
Onset Acute worsening 4 8 years of progressive New mechanism of injury (rotation
days ago while lumbar pain from under load) superimposed on
rotating to grab occupational demands degenerative baseline
heavy rebar;
chronic LBP
present for 8+
years
Location Central and Has had bilateral Acute exacerbation localized to
bilateral lower paraspinal discomfort lumbar region; no current
back; right > left; chronically dermatomal leg radiation (important
does NOT radiate negative)
below the knee
currently
Duration Acute phase: 4 Chronic: 8 years waxing Acute-on-chronic — two temporally
days; Chronic and waning distinct components
phase: 8+ years
Character Acute: sharp, Chronic: stiffness worst Acute: nociceptive, mechanical;
stabbing, 'catching' in AM (> 30 min), eases Chronic: degenerative mechanical
pain with with movement with possible myofascial component
movement;
Chronic: deep, dull,
aching, stiffness
Aggravating Bending forward, Chronic: end of Flexion-loading mechanics aggravate
rotation, prolonged workday, prolonged disc; rotation injuries paraspinal
standing, lifting; physical labor muscles and facets
morning stiffness;
stairs
Relieving Rest in lateral Has used ibuprofen Fetal position decompresses lumbar
decubitus (fetal PRN for years; heat disc — classic mechanical pattern
position); heat helpful
packs; OTC
ibuprofen (partial
relief only)
Timing Constant with acute Perennial — managed Chronic-on-acute pattern; no
spikes with with OTCs; no period of remission suggests advanced
movement; worse true remission in 3 degenerative disease
years
Advanced Health Assessment | Graduate Case Study | Page PAGE_NUMBER
