// Numbas version: exam_results_page_options {"name": "IV using 'units' amount to be drawn", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"tags": [], "ungrouped_variables": ["doseunits", "dosevolume", "unitspml", "ans"], "extensions": [], "statement": "

Evaluate the following without using a calculator.

\n

If you are unsure of how to do a question, click on Reveal answers to see the full working. Then, once you understand how to do the question, click on Try another question like this one to start again.

", "variable_groups": [], "variablesTest": {"condition": "", "maxRuns": 100}, "functions": {}, "rulesets": {}, "metadata": {"description": "Nursing question. IV question that uses 'units' (e.g. for insulin). Determine volume to be drawn from vial to make the infusion.", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "parts": [{"extendBaseMarkingAlgorithm": true, "sortAnswers": false, "variableReplacementStrategy": "originalfirst", "prompt": "

Your patient is ordered an IV infusion of $\\var{doseunits}$ units of a drug made up to $\\var{dosevolume}$ mL of normal saline. The drug comes in a vial with $\\var{unitspml}$ unit/mL. What volume from the vial needs to be drawn up to make the infusion?

\n

[[0]] mL

", "unitTests": [], "customMarkingAlgorithm": "", "useCustomName": false, "variableReplacements": [], "type": "gapfill", "showCorrectAnswer": true, "marks": 0, "showFeedbackIcon": true, "gaps": [{"extendBaseMarkingAlgorithm": true, "allowFractions": false, "variableReplacementStrategy": "originalfirst", "notationStyles": ["plain", "en", "si-en"], "mustBeReducedPC": 0, "unitTests": [], "minValue": "ans", "customMarkingAlgorithm": "", "useCustomName": false, "maxValue": "ans", "variableReplacements": [], "type": "numberentry", "showCorrectAnswer": true, "marks": 1, "mustBeReduced": false, "correctAnswerFraction": false, "showFractionHint": true, "showFeedbackIcon": true, "correctAnswerStyle": "plain", "scripts": {}, "customName": ""}], "scripts": {}, "customName": ""}], "variables": {"dosevolume": {"name": "dosevolume", "definition": "doseunits\n//random(doseunits,2*doseunits)", "description": "", "group": "Ungrouped variables", "templateType": "anything"}, "unitspml": {"name": "unitspml", "definition": "100//random(100,500)", "description": "", "group": "Ungrouped variables", "templateType": "anything"}, "ans": {"name": "ans", "definition": "doseunits/unitspml", "description": "", "group": "Ungrouped variables", "templateType": "anything"}, "doseunits": {"name": "doseunits", "definition": "random(10..90#10)", "description": "", "group": "Ungrouped variables", "templateType": "anything"}}, "name": "IV using 'units' amount to be drawn", "preamble": {"js": "", "css": ""}, "advice": "

\\begin{align}\\text{Dosage}&=\\frac{\\text{Strength Required}}{\\text{Stock Strength}}\\times \\frac{\\text{Vol}}{1}\\\\&=\\frac{\\var{doseunits}\\text{ units}}{\\var{unitspml} \\text{ units}}\\times \\frac{1 \\text{ mL}}{1}\\\\&=\\var{ans} \\text{ mL}\\end{align}

", "contributors": [{"name": "Ben Brawn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/605/"}]}]}], "contributors": [{"name": "Ben Brawn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/605/"}]}