IQ for You · By R.L. Veach, RN · Not affiliated with or endorsed by Baxter International
CRRT IQ
Welcome to CRRT IQ
Your structured path to CRRT competency — from foundations through clinical decision-making. Work through modules in order, or jump to any section.
Your Progress
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Modules Read
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Quiz Avg
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Cases Done
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Competency
Learning Modules
01
What Is CRRT?
Indications, mechanisms, continuous vs intermittent
Start
02
Machine Anatomy
Every component, every role
Start
03
Modalities
CVVH · CVVHD · CVVHDF
Start
04
Circuit Setup
Step-by-step initiation
Start
05
Alarms
Pressure alarms, blood leak, air, clotting
Start
06
Anticoagulation
Heparin vs citrate, calcium monitoring
Start
Quick Actions
CRRT IQ
Learning Modules
Six structured modules covering CRRT from foundations to anticoagulation. Read each module before taking the quiz.
Select a module to begin.
CRRT IQ
Machine Anatomy
Tap any hotspot on the diagram or any component in the list to learn its function, normal values, and clinical significance.
Interactive Diagram
TAP ANY HOTSPOT TO LEARN MORE
Component Reference
CRRT IQ
Glossary
CRRT terminology explained in plain clinical language. Search by term or filter alphabetically.
CRRT IQ
Label the Circuit
Click a label from the bank, then click the correct drop zone on the diagram. Test your component recognition from memory.
Instructions: Click a label to select it (it will highlight), then click the matching zone on the diagram. All 10 components must be correctly placed.
Label Bank
Score
0/10
Correct Placements
CRRT IQ
Pressure Trending Simulator
Read a 4-hour pressure graph, interpret what's happening, and choose the correct clinical action. This is the highest-yield CRRT skill for new nurses.
▸ 4-Hour Pressure Trend
Clinical Context
CRRT IQ
CRRT Dose Calculator
Calculate effluent rates, account for downtime, verify delivered dose. For educational purposes — confirm with institutional protocols.
Patient Parameters
Calculated Results
Total Effluent Rate
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Prescribed Dose
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Delivered Dose (est.)
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Replacement Fluid Rate
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Dialysate Rate
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Replacement Rate
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Dialysate Rate
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Net UF / 24hr
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KDIGO Clinical Note
Target delivered CRRT dose is 20–25 mL/kg/hr. Typical circuit downtime of 15–20% means prescribing 25–30 mL/kg/hr to reliably hit the delivered target. Doses above 25 mL/kg/hr have not been shown to improve outcomes in most patients.
CRRT IQ
Knowledge Checks
Five module-aligned quizzes, 5 questions each. Detailed clinical feedback after every answer.
Quiz 01
Test your understanding of why we use CRRT, indications, and mechanisms.
Quiz 02
Identify machine components and their clinical significance at the bedside.
Quiz 03
CVVH, CVVHD, CVVHDF — know the difference and when to use which.
Quiz 04
Pressure values are your early warning system. Know normal ranges cold.
Quiz 05
Heparin vs citrate, calcium monitoring, toxicity patterns.
CRRT IQ
Case Scenarios
Four fully branching clinical cases. Errors are tracked — aim for a perfect run.
Case 01
58M post-cardiac surgery, intubated. Access pressure alarm: −285 mmHg. Right IJ catheter, patient on his right side.
HR
108
MAP
58
Access P
−285
Flow
80 mL/m
Case 02
44F septic shock AKI, 18 hrs on CRRT. Effluent bag appears pink-tinged. No alarm has fired yet.
MAP
68
Hgb
7.2
Effluent
PINK
TMP
145
Case 03
67M acute liver failure on citrate CRRT 36 hrs. Labs: systemic iCa 0.88 mmol/L (↓), total calcium elevated.
iCa sys
0.88
Total Ca
↑ HIGH
iCa post
0.29
MAP
61
Case 04
TMP trending 110 → 168 → 224 mmHg over 2 hours. No alarm. Heparin pump displaying correct rate.
TMP now
224
2 hr ago
110
aPTT
38s
Flow
150
★
Full Competency Assessment
20 questions drawn from all five knowledge domains. Scored with per-domain breakdown. Complete all modules before attempting.
20
Questions
5
Domains
80%
Pass Score
Question 1 of 20
CRRT IQ
Competency Checklist
Track CRRT competencies for preceptor sign-off. Check each item as you demonstrate it at the bedside.
0% complete
Alarm Triage Timer
An alarm fires. The clock is running. Choose the correct first action before time runs out. Builds the pattern recognition that saves circuits — and patients.
Difficulty
30 sec
Orientee
20 sec
Experienced
12 sec
Expert
No Timer
Study Mode
Category Filter
All Alarms
Pressure
Safety
Anticoag
Clinical
⏱
Alarm Triage Timer
Each scenario presents a real alarm with vitals and context. Select your first correct action before time expires. Speed and accuracy are both tracked.
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Best Streak
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Avg Response
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Sessions Run
30
Question 1 of 10
30 sec · All Alarms
Streak: 0 🔥
Score: 0
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Correct
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Timed Out
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Avg Response
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Best Streak
Review
Fluid Balance Worksheet
Track hourly inputs and outputs for a full 12-hour shift. The worksheet calculates running balance against your prescribed net UF goal and alerts you when you're drifting off target.
Shift Setup ✓ Saved
Used for mL/kg calculations
mL total for this shift
Hours of tracking
mL/hr (machine setting)
mL/hr (if applicable)
24-hr clock (e.g. 7 or 19)
Shift Summary
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UF Goal (mL)
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Achieved So Far
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Remaining
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Actual Net Rate
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Status
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CRRT Uptime
Hourly Log
Enter values for each hour as the shift progresses. All inputs except CRRT Effluent and Replacement are manually entered. Calculations update automatically.
Tip: The "Other Inputs" column captures IVF, medications, blood products, tube feeds, and oral intake. "Other Outputs" captures urine, emesis, drain output, chest tube, etc.
Hour
CRRT On?
Effluent Out (mL)
Repl. Fluid In (mL)
Other Inputs (IVF, meds, blood, TF)
Other Outputs (urine, drain, emesis)
Hourly Net (mL)
Running Total (mL removed)
Goal Pace (should be)
Reference
How Net UF Is Calculated
Hourly Net = All Outputs − All Inputs
Outputs: Effluent + Urine + Drains + Emesis
Inputs: Replacement fluid + IVF + Meds + Blood + Tube feeds + Oral
A positive hourly net means more came out than went in — the patient is losing volume. This is what you want when the goal is fluid removal.
Common Documentation Errors
Forgetting replacement fluid as an input — the most common. If effluent is 2,000 mL but replacement is 1,900 mL, the net removal is only 100 mL/hr, not 2,000.
Missing medication volumes — IV antibiotics, vasopressors, and continuous infusions add up to hundreds of mL per shift.
Shift Handoff Checklist
Report cumulative net UF achieved this shift
Report remaining UF goal for next shift (if ordered daily)
Report CRRT uptime hours and any circuit downtime
Compare ordered net UF rate vs actual delivered rate
CRRT IQ
Sources & References
All clinical content is grounded in peer-reviewed literature, international guidelines, and manufacturer documentation.
Every clinical claim in CRRT IQ — pressure ranges, anticoagulation targets, dose recommendations, alarm protocols, and modality comparisons — is traceable to one of the citations below. Superscript numbers throughout the app correspond to these references. If you identify a claim that needs stronger support or is outdated, please contact the developer.
Content Disclaimer
This application is designed for educational and training purposes only. It does not replace institutional protocols, manufacturer instructions for use (IFU), or the clinical judgment of qualified healthcare providers. CRRT IQ is not affiliated with or endorsed by Baxter International, Inc. PrisMax® is a registered trademark of Baxter International. All clinical parameters cited are general reference ranges and must be confirmed against your institution's specific protocols.