// Numbas version: exam_results_page_options
{"name": "Fluid balance", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Fluid balance", "tags": ["addition", "Addition", "arithmetic", "Arithmetic", "ephlth", "negatives", "nursing", "subtraction"], "metadata": {"description": "", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "<p>Complete the following without the use of a calculator:</p>", "advice": "", "rulesets": {}, "extensions": [], "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"in3": {"name": "in3", "group": "Ungrouped variables", "definition": "l[2]", "description": "", "templateType": "anything", "can_override": false}, "out4": {"name": "out4", "group": "Ungrouped variables", "definition": "l[8]", "description": "", "templateType": "anything", "can_override": false}, "totout": {"name": "totout", "group": "Ungrouped variables", "definition": "sum(l[5..10])", "description": "", "templateType": "anything", "can_override": false}, "in1": {"name": "in1", "group": "Ungrouped variables", "definition": "l[0]", "description": "", "templateType": "anything", "can_override": false}, "in5": {"name": "in5", "group": "Ungrouped variables", "definition": "l[4]", "description": "", "templateType": "anything", "can_override": false}, "in4": {"name": "in4", "group": "Ungrouped variables", "definition": "l[3]", "description": "", "templateType": "anything", "can_override": false}, "totin": {"name": "totin", "group": "Ungrouped variables", "definition": "sum(l[0..5])", "description": "", "templateType": "anything", "can_override": false}, "out2": {"name": "out2", "group": "Ungrouped variables", "definition": "l[6]", "description": "", "templateType": "anything", "can_override": false}, "out3": {"name": "out3", "group": "Ungrouped variables", "definition": "l[7]", "description": "", "templateType": "anything", "can_override": false}, "in2": {"name": "in2", "group": "Ungrouped variables", "definition": "l[1]", "description": "", "templateType": "anything", "can_override": false}, "out1": {"name": "out1", "group": "Ungrouped variables", "definition": "l[5]", "description": "", "templateType": "anything", "can_override": false}, "balanceL": {"name": "balanceL", "group": "Ungrouped variables", "definition": "balance/1000", "description": "", "templateType": "anything", "can_override": false}, "l": {"name": "l", "group": "Ungrouped variables", "definition": "shuffle(25..1000#25)[0..10]", "description": "", "templateType": "anything", "can_override": false}, "out5": {"name": "out5", "group": "Ungrouped variables", "definition": "l[9]", "description": "", "templateType": "anything", "can_override": false}, "balance": {"name": "balance", "group": "Ungrouped variables", "definition": "totin-totout", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["l", "in1", "in2", "in3", "in4", "in5", "out1", "out2", "out3", "out4", "out5", "totin", "totout", "balance", "balanceL"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "gapfill", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": false, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>A patient has had the following fluid inputs and outputs over the last 12&nbsp;hours.&nbsp;</p>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><strong>Input</strong></td>\n<td style=\"text-align: center;\"><strong>Output</strong></td>\n</tr>\n<tr>\n<td style=\"text-align: right;\">{in1} mL</td>\n<td style=\"text-align: right;\">{out1}&nbsp;mL</td>\n</tr>\n<tr>\n<td style=\"text-align: right;\">{in2}&nbsp;mL</td>\n<td style=\"text-align: right;\">{out2}&nbsp;mL</td>\n</tr>\n<tr>\n<td style=\"text-align: right;\">{in3}&nbsp;mL</td>\n<td style=\"text-align: right;\">{out3}&nbsp;mL</td>\n</tr>\n<tr>\n<td style=\"text-align: right;\">{in4}&nbsp;mL</td>\n<td style=\"text-align: right;\">{out4}&nbsp;mL</td>\n</tr>\n<tr>\n<td style=\"text-align: right;\">{in5}&nbsp;mL</td>\n<td style=\"text-align: right;\">{out5}&nbsp;mL</td>\n</tr>\n</tbody>\n</table>\n<p>Determine the following:</p>\n<table>\n<tbody>\n<tr>\n<td>Total Input</td>\n<td style=\"text-align: center;\">$=$</td>\n<td>&nbsp;[[0]] mL</td>\n</tr>\n<tr>\n<td>Total Output</td>\n<td style=\"text-align: center;\">$=$</td>\n<td>&nbsp;[[1]] mL</td>\n</tr>\n<tr>\n<td>Fluid Balance</td>\n<td style=\"text-align: center;\">$=$</td>\n<td>&nbsp;[[2]] mL</td>\n</tr>\n<tr>\n<td>Fluid Balance</td>\n<td style=\"text-align: center;\">$=$</td>\n<td style=\"text-align: left;\">&nbsp;[[3]] L</td>\n</tr>\n</tbody>\n</table>\n<p></p>\n<p></p>", "stepsPenalty": "0", "steps": [{"type": "information", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>You need to add up all of the inputs. You could do this all as one big addition, or you could do it by adding two inputs together at a time.&nbsp;</p>\n<p>Do the same for the outputs.</p>\n<p></p>\n<p>Once you have the total input and the total output, you need to do determine the fluid balance by doing</p>\n<p style=\"text-align: center;\">fluid balance $=$ fluid input $-$ fluid output</p>\n<p style=\"text-align: left;\">Be aware this number could be positive or negative.</p>\n<p style=\"text-align: left;\"></p>\n<p>When you are doing a subtraction that will result in a negative (that is, you are 'taking away' more than you have), many people reverse the order of the subtraction to make it easier and then put a negative in front of the answer.</p>\n<hr/>\n<p>For example, suppose the question was to determine $700-1500$. We can see the answer will be a negative number (since $1500$ is bigger than $700$). Let's do the related subtraction $1500-700$ first. Here are two common methods:</p>\n<ul>\n<li>You could subtract $500$ and then subtract $200$ (instead of subtracting $700$ all at once), that is $1500-700=1500-500-200=1000-200=800$.&nbsp;</li>\n<li>You could determine how many you need to add to $700$ to get $1500$, that is realise&nbsp;$700+800=1500$.</li>\n</ul>\n<p>Regardless, we find that $1500-700=800$ and so our answer to the original question is $700-1500=-800$.</p>\n<p></p>\n<hr/>\n<p>Once you have your answer in millilitres you can convert it into litres by moving the decimal place $3$ places (which is the same as dividing by $1000$). 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