Free practice quiz
CNSCP Prep Course (CNSCP): free quiz
10 questions from the program. See your score right away, then unlock the explanation of every answer.
- Question 1 of 10
A pharmacist on the nutrition support team reviews a 76-year-old inpatient with pneumonia receiving ceftriaxone 1 g IV every 24 hours and azithromycin 500 mg IV every 24 hours. The record shows unintentional weight loss and intake under 50% for 5 days. Which pharmacist-scope recommendation best applies nutrition risk screening principles?
Adult nutrition risk screening
A is correct: screening rapidly identifies risk from poor intake, weight loss, and disease burden; a positive screen prompts full nutrition assessment. Ceftriaxone/azithromycin may affect appetite but do not replace screening. C reverses the workflow: assessment follows a positive screen. B is tempting because infection is a risk factor, but STRONGkids is pediatric. D is unsafe; screening should occur early in hospitalized adults.
NOTICE poor intake and weight loss; SAY positive screen warrants dietitian evaluation; MONITOR intake and weight during admission; ESCALATE if intake remains inadequate or refeeding risk is present. - Question 2 of 10
A pharmacist on the nutrition support team reviews an adult receiving furosemide 40 mg IV every 12 hours and pantoprazole 40 mg IV daily. Weight history: usual dry weight 72 kg 1 month ago, admission weight 68 kg, current weight 77 kg with new ascites and 3+ edema. Which anthropometric interpretation best supports the nutrition assessment?
Weight history with fluid overload
D is correct: edema and ascites can falsely increase scale weight; usual dry weight and serial trend show about 5.6% loss from 72 to 68 kg in 1 month. B is tempting because it uses the newest value, but fluid gain eliminates it. C is tempting when actual weight is distorted, but ideal weight does not replace weight-loss history. A is tempting during diuresis, but assessment should proceed using best estimated dry and usual weights.
NOTICE fluid overload; SAY weight loss may be masked; MONITOR serial weights and edema daily; CLARIFY estimated dry weight if trends conflict. - Question 3 of 10
A 72-year-old fictional patient had an ischemic stroke with severe dysphagia. Oral intake has been negligible for 5 days and no safe oral intake is expected for another week. The abdomen is soft, bowel sounds are present, and there is no ileus or shock. Current medications include thiamine 100 mg IV daily and phenytoin 100 mg IV every 8 hours. As the nutrition support pharmacist on rounds, which recommendation best matches guideline-concordant indications and route selection?
Review Indications for Nutrition Support
D is correct: inadequate oral intake with a functional GI tract favors enteral nutrition; thiamine and cautious advancement address refeeding risk. B is tempting due aspiration concern, but prolonged dextrose alone is inadequate. C is tempting after 5 days NPO, but full-goal PN is unnecessary when enteral feeding is feasible. A is tempting because phenytoin can bind enteral formula, but the interaction is managed by timing/monitoring rather than avoiding enteral nutrition.
NOTICE inadequate intake plus functional gut. SAY recommend EN and refeeding precautions. MONITOR phosphorus, potassium, magnesium daily initially. HOLD/CLARIFY/ESCALATE if severe electrolyte derangements or hemodynamic instability occur.
- Question 4 of 10
A pharmacist on the ICU nutrition support team reviews a 52-year-old adult with BMI 38 kg/m2 receiving propofol 30 mcg/kg/min IV continuous infusion and norepinephrine 0.04 mcg/kg/min IV continuous infusion. Enteral nutrition is being planned, indirect calorimetry is available, and the team wants to avoid overfeeding during critical illness. Which energy-requirement approach is most appropriate?
Energy method selection
A is correct: indirect calorimetry best reflects measured expenditure when available, and propofol contributes lipid kcal that can cause overfeeding. D is tempting as a quick weight-based estimate, but actual-weight dosing in obesity and ignoring propofol are traps. C is tempting for stress adjustment, but adding propofol on top double-counts calories. B is tempting for “high stress,” but 30–35 kcal/kg actual weight overfeeds many critically ill patients with obesity.
NOTICE propofol lipid calories and obesity; SAY use measured needs if available; MONITOR intake versus target daily; HOLD/CLARIFY if calories exceed measured expenditure. - Question 5 of 10
A pharmacist on the pediatric nutrition support team reviews PN containing dextrose 12.5% infusing IV at 14 mL/hr continuously for a fictional 3.5-kg infant. The infant also receives methylprednisolone 1 mg/kg IV every 12 hours. Which GIR should the pharmacist verify and communicate during PN monitoring?
Review GIR Calculations — focus on mg/kg/min unit conversion
C is correct: dextrose 12.5% = 125 mg/mL; 125 × 14 = 1750 mg/hr; 1750 ÷ 60 ÷ 3.5 = 8.3 mg/kg/min. B is tempting but uses the wrong concentration conversion. A confuses volume rate with glucose mass delivery. D notes a real interaction risk: corticosteroids can worsen hyperglycemia, but they do not change the GIR calculation.
NOTICE steroid-associated hyperglycemia risk; SAY calculated GIR is 8.3 mg/kg/min; MONITOR serum glucose per PN protocol; HOLD/CLARIFY/ESCALATE if persistent hyperglycemia or unsafe dextrose advancement occurs. - Question 6 of 10
A nutrition support pharmacist reviews an adult PN order: amino acids 40 g, dextrose 100 g, sodium chloride 35 mEq, potassium acetate 20 mEq, calcium gluconate 4.5 mEq, and magnesium sulfate 8 mEq in 1,000 mL IV over 24 hours daily. Ceftriaxone 2 g IV every 24 hours is also active. Using \(10\) mOsm/g amino acids, \(5\) mOsm/g dextrose, and \(2\) mOsm/mEq cations, what is the best recommendation?
PN Osmolarity Estimation
Correct: D. Estimated osmolarity is \(40\ imes10+100\ imes5+(35+20+4.5+8)\ imes2=1,035\) mOsm/L, above a common peripheral PN limit near 900 mOsm/L; recommend central delivery or reformulation, not line placement. C is tempting but undercounts electrolytes. A is a dose-adjustment trap: lowering dextrose may reduce osmolarity but changes calories and still requires full recalculation. B is an interaction trap: calcium requires ceftriaxone compatibility review and also contributes to osmolarity. NOTICE high osmolarity and ceftriaxone-calcium risk; SAY recommend route/reformulation review; MONITOR electrolytes and access daily during initiation; HOLD/CLARIFY peripheral infusion if osmolarity exceeds local threshold.
- Question 7 of 10
A nutrition support pharmacist reviews an ICU adult receiving metoclopramide 10 mg IV every 6 hours and pantoprazole 40 mg IV daily. Current nutrition order is polymeric enteral nutrition 60 mL/hour by nasogastric tube. The patient has a functional GI tract but recurrent witnessed regurgitation and suspected aspiration despite head-of-bed elevation and prokinetic therapy; expected nutrition support duration is about 10 days. Which route/access recommendation is most appropriate?
Route selection
C is correct: aspiration risk despite metoclopramide favors postpyloric enteral delivery when the gut works; placement should be performed/confirmed by the appropriate service. B is tempting because rate reduction seems safer, but it does not address recurrent regurgitation. D is tempting for access durability, but 10 days is short-term and PEG is a procedure, not the pharmacist’s action. A is tempting after intolerance, but functional GI tract favors enteral nutrition; aspiration risk is not an absolute PN indication.
NOTICE: recurrent regurgitation on gastric EN. SAY: recommend postpyloric access evaluation. MONITOR: aspiration signs and intake daily. HOLD/CLARIFY/ESCALATE: pause feeds and notify team if aspiration or instability occurs. - Question 8 of 10
As the nutrition support pharmacist, you evaluate a 68-kg adult receiving phenytoin suspension 100 mg via nasogastric tube every 8 hours. The patient has an intact GI tract, estimated need 1800 kcal/day, and a fluid goal near 1500 mL/day. Which enteral nutrition recommendation best applies standard polymeric formula principles?
Standard polymeric formula selection
B is correct: intact digestion supports a standard polymeric formula; \(1800\text{ kcal}/1.5\text{ kcal/mL}=1200\text{ mL}\), fitting the fluid goal, and phenytoin absorption can be reduced by tube feeds, so coordinate per protocol and monitor levels. C is tempting for tolerance, but peptide formula is unnecessary, exceeds fluid, and misses the interaction. A uses the right class but delivers 1800 mL. A conserves fluid, but disease-specific 2.0 kcal/mL is not indicated and may underdeliver protein or fiber.
NOTICE fluid goal and phenytoin; SAY concentrated standard formula; MONITOR intake and phenytoin levels; CLARIFY low levels or intolerance. - Question 9 of 10
A nutrition support pharmacist reviews a fictional 68-year-old ICU step-down patient receiving phenytoin suspension 100 mg via gastric tube every 8 hours and pantoprazole 40 mg IV daily. The patient has tolerated gastric continuous enteral nutrition at 60 mL/hour for 72 hours, is now hemodynamically stable, and is preparing for inpatient rehabilitation with daytime therapy. The team asks how to transition feeding delivery without exceeding the patient’s known tolerance. Which recommendation is most appropriate?
Feeding schedule transition
B is best: cyclic EN preserves a tolerated gastric route, improves daytime mobility, and manages phenytoin’s reduced absorption during EN by separating feeds when feasible and monitoring levels. C is tempting because continuous EN is tolerated, but it undermines rehabilitation and ignores the phenytoin-EN interaction. A is tempting for home gastric feeding, but abrupt bolus conversion in a recently unstable, delirious patient increases intolerance or aspiration risk; do not mix phenytoin into formula. D is tempting because 12-hour cycles are convenient, but empiric phenytoin dose escalation is a dose-adjustment trap; adjust only with levels and prescriber collaboration.
Pharmacist Action: NOTICE phenytoin plus EN; SAY separate and monitor; MONITOR gastric tolerance and phenytoin level; HOLD/CLARIFY for vomiting, aspiration, or abnormal levels. - Question 10 of 10
A 62-year-old fictional ICU patient receives enteral nutrition at 60 mL/hr via nasogastric tube and metoclopramide 10 mg enterally every 6 hours. The bedside nurse reports a gastric residual volume of 250 mL. The patient has no vomiting, abdominal distension, pain, or new oxygen requirement; bowel sounds are present and the head of bed is elevated. As the nutrition support pharmacist on rounds, which recommendation is most appropriate?
Review Gastric Residual Volume Interpretation
A is correct: an isolated 250 mL gastric residual without emesis, distension, pain, or instability should not automatically stop enteral nutrition; residuals are weak tolerance markers. D is tempting because metoclopramide promotes gastric emptying, but route escalation treats a number rather than intolerance. C is a dose trap: renal impairment increases metoclopramide exposure, so escalation is unsafe. B is an interaction trap: erythromycin plus amiodarone increases QT-risk. Thresholds vary locally, but feeds are commonly held or clarified for larger residuals with symptoms.
NOTICE: isolated residual. SAY: continue feeds if clinically tolerant. MONITOR: symptoms and residuals per protocol. HOLD/CLARIFY/ESCALATE: vomiting, distension, aspiration signs, or high residual per policy.
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