Diabetic ketoacidosis and HHS demand precise fluid, insulin, and potassium management the CMSRN tests. Drill the DKA-vs-HHS and correction scenarios below, each with a full rationale.
Question 1
During hurricane recovery, a community health nurse assesses a diabetic patient whose insulin was lost in the disaster. The patient's glucose is 320 mg/dL, and local pharmacies remain closed. Which action best supports immediate recovery-phase care continuity?
- A) A) Administering sample insulin from the clinic's emergency stock✓
- B) B) Referring to a shelter medical station for temporary supplies
- C) C) Teaching carbohydrate counting until pharmacies reopen
- D) D) Arranging transport to an open hospital 50 miles away
Show rationale
The cues (critical hyperglycemia and inaccessible pharmacies) require urgent intervention to prevent complications. Option A directly addresses the immediate threat using disaster-preparedness resources, consistent with CMSRN standards for maintaining chronic disease management during recovery. Option B may delay care as shelters often lack specialized medications. Option C is insufficient for insulin-dependent diabetes. Option D creates unnecessary burden when local solutions exist. Disaster recovery protocols prioritize using onsite emergency caches before engaging overwhelmed external systems.
Question 2
A 68-year-old patient with type 2 diabetes and heart failure (ejection fraction 30%) presents with 3 days of productive cough, fever of 38.6°C (101.5°F), and oxygen saturation of 88% on room air. Blood glucose is 15.2 mmol/L (274 mg/dL). Which finding most urgently requires intervention?
- A) A) Elevated blood glucose level requiring insulin adjustment
- B) B) Hypoxemia indicating potential respiratory compromise✓
- C) C) Febrile state suggesting active infection process
- D) D) Productive cough signaling possible pneumonia development
Show rationale
Hypoxemia (SpO2 88%) poses immediate risk of respiratory failure and takes priority due to potential rapid deterioration, especially with existing heart failure. While hyperglycemia (A) requires management, it's less immediately life-threatening. Fever (C) and cough (D) support infection diagnosis but don't directly indicate oxygenation compromise. CMSRN prioritization standards emphasize airway/oxygenation first, particularly with comorbidities exacerbating hypoxemia risks like reduced cardiac output.
Question 3
A diabetic patient receiving TPN has 3+ glucose in urine and serum glucose of 290 mg/dL 4 hours after TPN initiation. The solution contains 25% dextrose. Which nursing action best addresses glycemic control per ADA guidelines?
- A) A) Administer a one-time IV insulin bolus and monitor for 1 hour
- B) B) Reduce infusion rate by 50% and add regular insulin to the TPN bag
- C) C) Initiate IV insulin infusion and decrease dextrose to 15%✓
- D) D) Discontinue TPN temporarily and check ketones
Show rationale
Severe hyperglycemia with glucosuria requires immediate correction. IV insulin infusion allows rapid titration, while dextrose reduction prevents sustained hyperglycemia. ADA guidelines prioritize IV insulin for acute hyperglycemia over TPN adjustments alone. Option A provides transient control. Option B delays insulin onset. Option D is unnecessary without ketoacidosis. Continuous insulin infusion optimizes safety during dextrose reduction.
Question 4
A diabetic patient with a new surgical wound, HbA1c of 9.2%, and no reliable transportation is discharged. Which care coordination strategy most effectively prevents infection-related readmission?
- A) A) Teach self-administered wound care using a pictorial guide during discharge
- B) B) Coordinate same-day delivery of insulin and dressing supplies to their home
- C) C) Schedule outpatient endocrinology follow-up in 14 days
- D) D) Arrange a visiting nurse for wound assessments three times weekly✓
Show rationale
Uncontrolled diabetes (cue: HbA1c 9.2%) and transportation barriers necessitate proactive wound monitoring. Option D ensures early infection detection. Option A ignores hyperglycemia-impaired healing and literacy needs. Option B addresses supplies but not assessment. Option C delays intervention beyond high-risk window. AMSN protocols emphasize nurse-led wound surveillance for diabetics with social determinants (cue: no transportation).
Question 5
A nurse receives an alert that the unit’s computers are infected with ransomware. Patient vitals are currently stable, but medication administration records are inaccessible. Which response aligns with cybersecurity emergency protocols?
- A) A) Continue care using paper documentation until IT restores systems.
- B) B) Access records from a personal smartphone to verify medication doses.
- C) C) Report the alert to the hospital’s incident response team immediately.✓
- D) D) Disconnect affected computers from the network to limit malware spread.
Show rationale
Ransomware requires institutional response (cue: inaccessible MARs). Reporting triggers containment protocols per HHS guidelines. Option A is a contingency but delays breach mitigation. Option B violates BYOD policies and risks PHI exposure. Option D may be part of IT’s response but isn’t a nurse’s role—unauthorized tampering could worsen outages. Immediate reporting ensures coordinated actions while maintaining care continuity with backup methods.
Question 6
A 65-year-old woman with type 2 diabetes (HbA1c 7.2%), hypertension, and osteoporosis is started on prednisone 20mg daily for a polymyalgia rheumatica flare. Her current medications are metformin 1000mg BID, lisinopril 10mg daily, alendronate 70mg weekly, and calcium/vitamin D. Three days later, her fasting glucose is 210 mg/dL. What is the MOST appropriate pharmacological intervention?
- A) A) Increase the metformin dose to 1000mg TID
- B) B) Add bedtime NPH insulin to cover glucocorticoid effect✓
- C) C) Discontinue alendronate to reduce metabolic burden
- D) D) Switch prednisone to a non-systemic corticosteroid
Show rationale
Glucocorticoids (prednisone) cause significant hyperglycemia, especially pronounced in diabetics. NPH insulin at bedtime effectively targets the dawn phenomenon and peak glucocorticoid hyperglycemic effect. Option A: Metformin increase is insufficient for acute steroid-induced hyperglycemia and may cause GI side effects. Option C: Alendronate is essential for osteoporosis and doesn't significantly impact glucose; stopping it increases fracture risk. Option D: Systemic steroids are often necessary for PMR; switching isn't feasible and topical steroids wouldn't treat systemic inflammation. Insulin is the standard for managing steroid-induced hyperglycemia per ADA guidelines.
Question 7
A 70-kg burn patient (30% TBSA) develops necrotizing pancreatitis. After 14 days of jejunal feeds, amylase rises to 850 U/L with increased pain and nausea. Prealbumin is 14 mg/dL. Next step?
- A) A) Switch to elemental enteral formula
- B) B) Discontinue enteral nutrition temporarily
- C) C) Initiate TPN with glycemic control✓
- D) D) Reduce enteral rate and add analgesics
Show rationale
Worsening pancreatitis despite jejunal feeding (rising amylase/pain) indicates intolerance requiring TPN. Hypermetabolic burn injury increases nutritional needs beyond what reduced enteral feeds (Option D) or formula changes (Option A) can provide. Option B starves a catabolic patient. TPN is indicated when enteral nutrition fails in critical illness. Glycemic control is essential per ASPEN/SCCM guidelines to avoid hyperglycemia complications.
Question 8
A nurse preparing an insulin drip in a medication room smells smoke from overheated equipment. Flames appear from an unattended microwave used for patient meal warming. After activating the alarm, which fire response follows RACE protocol for this contained hazard?
- A) A) Close all doors and use a Class K extinguisher on the appliance✓
- B) B) Evacuate nearby patients and shut down oxygen valves
- C) C) Remove combustible materials and contain with wet towels
- D) D) Disconnect electrical sources and smother with baking soda
Show rationale
Contained kitchen fires require Class K extinguishers for grease/electrical combos per NFPA 10. Closing doors limits oxygen spread—critical in RACE's "confine" step. B is for large-scale evacuations. C risks spreading grease fires. D is ineffective for appliance fires. Hospital fire protocols specify extinguisher types by source; using wrong agents (e.g., water on electrical fires) increases hazards.
Question 9
A diabetic patient with an epidural catheter for 72 hours develops new back pain and fever (38.9°C). Motor strength is 3/5 bilaterally in legs. Which finding requires immediate escalation?
- A) A) Hyperglycemia (glucose 240 mg/dL) on morning labs.
- B) B) Purulent drainage at the catheter insertion site.
- C) C) Sudden loss of sensation below the T10 dermatome.✓
- D) D) White blood cell count elevation to 14,000/μL.
Show rationale
New neurological deficits (C) suggest epidural hematoma/abscess requiring emergency imaging. Drainage (B) and leukocytosis (D) indicate infection but don't imply cord compression. Hyperglycemia (A) is expected in diabetes. AMSN standards prioritize neurological changes over isolated fever or labs. Motor/sensory deficits with fever warrant immediate intervention to prevent paralysis.
Question 10
During a shift change, a nurse discovers printed patient handoff sheets in an unlocked recycling bin near the nurses’ station. The sheets include full names and treatment plans. What is the priority action?
- A) A) Shred the documents immediately using a cross-cut shredder in the unit.
- B) B) Report the incident to hospital security for potential breach investigation.
- C) C) Place the sheets in a locked confidential waste container for disposal.✓
- D) D) Redact sensitive information manually before recycling the documents.
Show rationale
Unsecured PHI disposal (cue: unlocked bin) requires immediate containment. Locked bins prevent further exposure while complying with HIPAA disposal rules. Option A skips mandatory breach reporting if PHI was accessed. Option B is necessary but secondary to securing documents first. Option D is unreliable and time-intensive. Secure physical containment aligns with HHS guidelines for incidental discovery before escalation.
Question 11
A diabetic patient with a stage 3 pressure injury on admission has a blood glucose of 280 mg/dL. The unit's standardized wound protocol emphasizes glycemic control but the patient refuses insulin. Which approach best integrates evidence-based standards?
- A) A) Document refusal and continue routine wound care without insulin
- B) B) Offer oral hypoglycemics instead per patient preference
- C) C) Explain insulin's role in wound healing and seek compromise✓
- D) D) Defer wound treatment until glucose normalizes
Show rationale
Standardized care requires patient-centered adaptation. A ignores evidence linking hyperglycemia to impaired healing. Oral agents (B) may be insufficient for 280 mg/dL. Deferring care (D) risks infection progression. C educates using evidence (glycemic control accelerates healing) while respecting autonomy, aligning with AMSN standards for collaborative decision-making. The cues (stage 3 injury, refusal) necessitate negotiation, not protocol abandonment.
Question 12
Three days post-abdominal surgery, a diabetic patient receiving patient-controlled analgesia has acute confusion (new CAM-positive) and tachypnea (RR 28/min). Vital signs show BP 160/90, HR 110, SpO₂ 96% on room air, and temperature 37.8°C (100°F). Which factor most strongly indicates the need for rapid response activation?
- A) A) Inadequate pain control requiring PCA adjustment
- B) B) Hyperglycemia from surgical stress response
- C) C) Potential opioid-induced respiratory depression
- D) D) Emerging sepsis with altered mental status✓
Show rationale
New-onset delirium with tachypnea and low-grade fever in a postoperative patient suggests early sepsis, meeting systemic inflammatory response syndrome (SIRS) criteria and warranting RRT evaluation. While opioid toxicity could cause confusion, normal SpO₂ and absence of bradypnea make this less likely. Hyperglycemia and pain are common postoperative issues but don't independently explain the cluster of symptoms. Sepsis requires urgent interdisciplinary assessment for source control and antibiotics, making RRT activation appropriate for coordinated intervention before further deterioration.
Question 13
A diabetic patient with a stage 3 sacral pressure injury shows no improvement after 2 weeks of hydrogel dressings and repositioning every 2 hours. Wound assessment reveals increased exudate and foul odor. Blood glucose averages 240 mg/dL. Which modification is essential?
- A) A) Consult wound care for negative pressure therapy✓
- B) B) Switch to alginate dressings and increase repositioning
- C) C) Add nutritional consult and continue current regimen
- D) D) Initiate antibiotic therapy and use hydrocolloid dressings
Show rationale
A is correct due to wound deterioration (exudate, odor) suggesting infection/complexity, requiring advanced intervention. Negative pressure promotes healing in stage 3+ wounds. Persistent hyperglycemia impairs healing, but B misses infection cues. C ignores biofilm risk and inadequate current treatment. D presumes infection without culture confirmation; hydrocolloids trap exudate. AMSN guidelines emphasize escalating care for non-healing wounds with systemic factors like uncontrolled diabetes.
Question 14
An alert homeless patient with diabetic ketoacidosis refuses insulin, stating distrust of "hospital chemicals." His glucose is 480 mg/dL. Which action best advocates for patient rights while addressing safety?
- A) A) Withhold insulin and document refusal to respect autonomy despite risks
- B) B) Administer insulin covertly in IV fluids to prevent acute complications
- C) C) Explore specific medication concerns while explaining consequences of untreated hyperglycemia✓
- D) D) Initiate involuntary psychiatric hold for presumed impaired decision-making
Show rationale
This addresses distrust through dialogue and education, preserving autonomy while promoting safety. Distractor A neglects advocacy through therapeutic communication. B violates ethical principles of consent. D inappropriately pathologizes distrust. Homelessness (social cue) and metabolic emergency (clinical cue) require balancing harm reduction with respect for capacity per AMSN advocacy standards.
Question 15
A severely malnourished patient admitted with alcohol use disorder is started on enteral nutrition. On day 3, the nurse notes the patient has developed peripheral edema, lab results show hypophosphatemia and hypomagnesemia, and the patient appears lethargic. The feeding rate was advanced rapidly to goal. What complication is the patient most likely experiencing?
- A) A) Hyperglycemia secondary to refeeding syndrome.
- B) B) Fluid overload from rapid formula administration.
- C) C) Electrolyte imbalances consistent with refeeding syndrome.✓
- D) D) An allergic reaction to the protein source in the formula.
Show rationale
This classic presentation indicates refeeding syndrome: severe malnutrition (alcoholism), rapid advancement of feeds, and critical electrolyte shifts (hypophosphatemia, hypomagnesemia) causing edema and lethargy. While hyperglycemia (A) can occur, the key signs are the specific electrolyte deficiencies. Fluid overload (B) might cause edema but doesn't explain the electrolyte findings or lethargy. Allergy (D) typically presents with rash or respiratory distress, not these metabolic changes. The malnutrition and rapid advancement are key cues.
