Welcome to your 2. 🥗 Vitamin Deficiencies, Pediatric Malnutrition & Clinical Nutritional Support with Pediatric Malnutrition Long Case Arena — 60 Integrated MCQs
1.
A 2-year-old child presents with poor growth despite the family's report of adequate food availability. He has experienced persistent loose stools, bulky offensive stools and continued weight loss. Examination reveals severe wasting without nutritional edema. Which underlying problem should receive particular consideration?
2.
A 58-year-old patient requires prolonged nutritional support after major gastrointestinal surgery. A central venous catheter has been selected for administering a concentrated parenteral nutritional formulation. Why is central venous access preferable to a small peripheral vein for this formulation?
3.
A 52-year-old man with severe nutritional depletion is starting artificial nutritional support after prolonged poor intake. Baseline investigations show low serum potassium and magnesium. The healthcare team intends to reduce the risk of metabolic complications during nutritional rehabilitation. Which approach is most appropriate?
4.
A 20-month-old boy with severe wasting has recurrent respiratory infections and intermittent diarrhea. His temperature is normal, but he is less active than usual and has poor appetite. The clinical team is concerned about an associated infection. Which approach to further investigation is most appropriate?
5.
A 7-year-old child has a history of recurrent severe malnutrition and chronic diarrhea. Examination shows dry skin and persistent ocular surface changes. The pediatrician explains that vitamin A deficiency increases susceptibility to infections in addition to affecting vision. Which physiological function is most relevant to this increased infection risk?
6.
A severely malnourished 18-month-old child is admitted with poor feeding and recurrent diarrhea. Initial blood tests reveal reduced serum potassium and phosphate concentrations. The pediatric team plans supervised nutritional rehabilitation. What is the main clinical significance of these biochemical findings?
7.
A 22-month-old boy presents with poor weight gain despite receiving regular meals. His mother reports that he previously walked independently but now spends most of the day lying down. She also mentions that he has recently stopped using several words that he previously spoke clearly. Which additional historical finding would most strongly suggest that a disorder other than nutritional deprivation requires assessment?
8.
A 54-year-old man undergoes gastrointestinal surgery after a prolonged period of poor oral intake and significant weight loss. During postoperative nutritional rehabilitation, he develops confusion, horizontal nystagmus and gait ataxia. Laboratory investigations reveal no significant electrolyte disturbance. The surgical team suspects impaired cerebral energy metabolism due to a nutritional deficiency. Which biochemical process is most directly affected?
9.
A 59-year-old man has been receiving enteral nutrition after prolonged illness. His gastrointestinal function has improved, and he is now able to swallow safely. The clinical team is considering discontinuation of tube feeding. Which factor is most important before removing enteral nutritional support?
10.
A 28-month-old child receiving treatment for severe acute malnutrition has shown improved appetite and resolution of edema. However, the mother reports that the household continues to experience food insecurity and recurrent diarrheal illnesses. Which discharge strategy is most likely to reduce the risk of nutritional relapse?
11.
A district health team investigates a high prevalence of childhood malnutrition in several low-income communities. The survey identifies inadequate dietary diversity, recurrent gastrointestinal infections, unsafe drinking water and poor maternal nutrition. Which intervention is most appropriate for reducing malnutrition at the population level?
12.
A 62-year-old patient has received nasogastric feeding for several days following surgery. He develops progressive abdominal distension, repeated vomiting and significant abdominal discomfort. Examination reveals a distended abdomen with clinical findings suggesting impaired gastrointestinal passage. What is the most appropriate immediate nutritional management decision?
13.
A 3-year-old child with severe acute malnutrition is initially stabilized in hospital. Appetite and activity gradually improve, and acute medical complications resolve. The clinical team now plans transition from stabilization feeding to nutritional rehabilitation. Which nutritional approach best supports recovery during the rehabilitation phase?
14.
A 14-year-old boy with a chronic disorder causing fat malabsorption develops progressive difficulty walking and reduced coordination. Examination reveals loss of vibration sensation, reduced reflexes and impaired balance. Serum vitamin E is low. Which pathological mechanism most directly explains the neurological findings?
15.
A 19-month-old child is examined because of progressive weight loss, poor appetite and recurrent diarrhea. He has prominent ribs, markedly reduced subcutaneous fat, thin limbs and diminished gluteal muscle bulk. There is no bilateral pitting edema. Which interpretation best describes the clinical phenotype?
16.
A 67-year-old woman with longstanding autoimmune gastritis presents with progressive fatigue and difficulty walking. Her hemoglobin is 8.4 g/dL with an MCV of 118 fL. Vitamin B12 replacement improves her hemoglobin, but residual gait instability persists after several weeks. Which explanation best accounts for the persistence of neurological symptoms despite hematological improvement?
17.
A 19-month-old child is receiving treatment for severe acute malnutrition. His blood count shows microcytic anemia, and the mother reports that he rarely eats iron-rich foods. The child is still undergoing initial stabilization for complicated malnutrition. Which approach to iron replacement is most appropriate?
18.
A 61-year-old woman with macrocytic anemia has received folic acid supplements for several months. Her hemoglobin has improved, but she now reports worsening numbness of both feet and difficulty maintaining balance. Examination reveals impaired joint-position sensation. Which management principle is most important in this situation?
19.
A severely malnourished 2-year-old child is admitted with lethargy and poor feeding. Laboratory investigations reveal a blood glucose concentration of 2.3 mmol/L. The child has reduced muscle mass and minimal nutritional reserves. Which physiological disturbance most directly explains the increased risk of hypoglycemia?
20.
A 57-year-old patient is receiving parenteral nutrition following gastrointestinal surgery. During the previous 24 hours, his recorded fluid intake consists of 1,500 mL of parenteral nutrition, 800 mL of intravenous fluids and 200 mL of medication infusions. Recorded output includes 1,400 mL of urine, 450 mL of surgical drain fluid and 300 mL of nasogastric aspirate. What is the documented 24-hour fluid balance?
21.
A 2-year-old child with severe acute malnutrition has been hospitalized for stabilization. Hypoglycemia and hypothermia have been corrected, and the child is now tolerating initial therapeutic feeds. The pediatric team plans gradual nutritional rehabilitation. Why should immediate unrestricted high-energy feeding be avoided during early stabilization?
22.
A 2-year-old boy with severe acute malnutrition is undergoing supervised rehabilitation. Over 24 hours, he develops increasing respiratory difficulty, new peripheral edema and reduced activity after an inappropriate rapid increase in feeding volume. Which complication requires immediate consideration?
23.
A 39-year-old woman who underwent gastrointestinal surgery develops progressive tingling of both feet and irritability several months later. Examination reveals peripheral sensory impairment and inflammation of the tongue. Her hemoglobin is mildly reduced, and blood film examination demonstrates microcytic hypochromic erythrocytes despite normal iron studies. Which mechanism most likely contributes to her anemia?
24.
A 66-year-old patient has been receiving parenteral nutrition for several days after abdominal surgery. Serial laboratory monitoring reveals falling serum potassium and magnesium concentrations. The patient remains clinically stable. What is the main reason these abnormalities require prompt assessment and correction?
25.
A 68-year-old patient receiving parenteral nutrition develops progressive weakness, increasing peripheral oedema and reduced urine output. Laboratory investigations reveal worsening renal function and electrolyte abnormalities. The nutritional infusion is continuing at the previously prescribed rate. Which management principle is most appropriate?
26.
A 19-month-old child with severe acute malnutrition is admitted with watery diarrhea and reduced oral intake. The child is conscious but weak. Examination shows sunken eyes and poor skin elasticity, although there is no evidence of shock. The team is concerned that standard dehydration assessment may be misleading. Which management principle is most appropriate?
27.
A 25-month-old child is admitted with severe wasting, recurrent infections and poor appetite. After stabilization, the child begins nutritional rehabilitation and demonstrates progressive weight gain. At follow-up, the caregiver asks why repeated measurements are necessary if the child looks healthier. Which assessment approach provides the most appropriate objective evidence of sustained nutritional recovery?
28.
A 20-month-old boy has a history of delayed complementary feeding, inadequate dietary diversity and recurrent infections. Examination shows prominent ribs, reduced gluteal fat, severe limb wasting and MUAC 10.6 cm. No bilateral pitting edema is present. Which diagnosis best integrates the clinical findings?
29.
A 69-year-old man receiving enteral nutrition through a nasogastric tube develops repeated episodes of coughing during feeding. He is usually fed while lying almost flat because of limited mobility. The healthcare team plans to modify his feeding care to reduce respiratory complications. Which intervention is most appropriate?
30.
A 64-year-old postoperative patient is receiving parenteral nutritional support. Over three consecutive days, his measured body weight increases, but he develops bilateral ankle oedema and reduced urine output. The treating team is concerned that the apparent weight gain does not reflect nutritional improvement. Which interpretation is most appropriate?
31.
A 19-month-old child with severe acute malnutrition undergoes laboratory assessment. His hemoglobin is 9.2 g/dL, and red cell indices show microcytosis and hypochromia. The child has a history of limited intake of animal-source foods and poor dietary diversity. Which interpretation is most appropriate?
32.
An 18-month-old child is brought with marked wasting and poor appetite. Anthropometric assessment confirms severe acute malnutrition. He is awake but refuses therapeutic food during a supervised appetite assessment. There are no clear signs of shock. Which conclusion should guide the next management decision?
33.
A 20-month-old boy with prolonged inadequate dietary intake is found to have marked wasting. His mid-upper arm circumference is 10.8 cm, and bilateral pitting edema is absent. He is alert and has no obvious respiratory distress. Which conclusion is most appropriate?
34.
A 61-year-old man has been receiving parenteral nutrition for several weeks because of impaired gastrointestinal absorption. His nutritional requirements are being met, but serial laboratory tests show progressively abnormal liver biochemical results. There is no evidence of acute circulatory instability. Which interpretation is most appropriate?
35.
A 17-month-old boy with severe acute malnutrition is admitted because of poor feeding, hypothermia and recurrent infection. After initial assessment, the pediatric team begins controlled stabilization feeding rather than unrestricted high-energy feeding. What is the most important reason for this approach?
36.
A 4-year-old child from a resource-limited community presents with progressive visual impairment. The mother reports recurrent episodes of diarrhea and an inadequate diet. Examination reveals marked conjunctival dryness and a cloudy, ulcerated cornea. Which immediate clinical priority is most appropriate?
37.
A 20-month-old boy is brought to the pediatric clinic with progressive weight loss and reduced activity over six months. His mother reports that complementary feeding began at nine months and that he currently receives mainly diluted milk, rice and tea. He has experienced several episodes of diarrhea. Which aspect of the feeding history is most important for identifying the underlying nutritional problem?
38.
A 60-year-old patient receiving total parenteral nutrition has persistently elevated serum glucose concentrations despite having no previous diagnosis of diabetes mellitus. His nutritional infusion contains a substantial carbohydrate component. Which mechanism best explains this metabolic disturbance?
39.
A 67-year-old man undergoes major abdominal surgery. On postoperative day 3, his gastrointestinal tract is functioning, and oral intake has resumed. However, he is consuming less than half of his estimated nutritional requirements because of early satiety and poor appetite. His swallowing mechanism is normal, and there is no evidence of intestinal obstruction. Which nutritional intervention is most appropriate at this stage?
40.
A 6-year-old boy presents with persistent bone pain and difficulty climbing stairs. Examination reveals widened wrists and genu valgum. Radiographs show metaphyseal cupping, fraying and widening of the growth plates. Serum phosphate is reduced, and alkaline phosphatase is elevated. Which initial laboratory investigation would most directly evaluate the suspected nutritional cause?
41.
A 73-year-old man with progressive neurological disease has severe oropharyngeal dysphagia. He is alert, haemodynamically stable and has preserved intestinal absorption. The clinical team is considering long-term enteral feeding. Before choosing a feeding route, which factor is most important in determining the suitability of gastric rather than intravenous nutritional delivery?
42.
A 54-year-old woman undergoes extensive intestinal resection following mesenteric ischemia. Postoperatively, she has insufficient functioning bowel to absorb the nutrients required to maintain her nutritional status. Despite attempts to optimize gastrointestinal feeding, significant nutritional deficits persist. Which physiological principle best explains the need for parenteral nutrition?
43.
A 65-year-old man develops prolonged bleeding after minor trauma following several weeks of poor nutritional intake and prolonged broad-spectrum antibiotic use. Laboratory testing demonstrates markedly prolonged PT/INR with relatively preserved platelet count. Vitamin K deficiency is suspected. Which treatment response would most strongly support this diagnosis?
44.
A 21-month-old child with severe wasting and recurrent diarrhea is brought for assessment. His mother reports inadequate food intake for several months. Examination confirms severe acute malnutrition, and the child is clinically stable. Which clinical consideration is most important before deciding between outpatient and inpatient nutritional rehabilitation?
45.
A 72-year-old patient is receiving enteral nutrition through a PEG tube. His caregiver notices that the tube no longer flushes easily, and resistance is encountered during water administration. There is no abdominal pain or evidence of systemic infection. Which action is most appropriate?
46.
An 18-month-old child has developed progressive wasting following several episodes of diarrhea and respiratory infections. His mother reports that his appetite decreases during illness and that weight gain remains poor even after symptoms resolve. Which mechanism best explains the relationship between recurrent infection and his nutritional deterioration?
47.
A 49-year-old patient has been receiving parenteral nutrition through a central venous catheter for several weeks. He develops swelling and discomfort of the arm on the catheter side. Examination reveals unilateral upper-limb oedema without evidence of local skin infection. Which catheter-related complication should be considered?
48.
A 56-year-old woman underwent PEG insertion five days ago. She now reports increasing pain around the insertion site. Examination reveals localized erythema, tenderness and purulent discharge without generalized abdominal rigidity. Which complication is most likely?
49.
A 70-year-old patient has a nasogastric feeding tube in place following an acute neurological illness. During routine care, the external tube marking is found to have changed, and the patient has recently experienced retching. Before the next feed is administered, what is the most appropriate action?
50.
An 18-month-old child with severe wasting and recurrent diarrhea is brought to the emergency department. He is lethargic, cold to touch and unable to feed. His bedside blood glucose is 38 mg/dL. Which management action is the immediate priority?
51.
An 8-month-old infant is brought to a rural health facility because of repeated respiratory infections and poor weight gain. The mother reports exclusive breastfeeding until 7 months without complementary feeding and limited access to nutritious foods. Examination reveals wasting without edema. Which intervention most directly addresses the underlying community-level cause of the child's nutritional condition?
52.
A 49-year-old woman who underwent intestinal resection for chronic bowel disease develops diffuse bone pain and progressive proximal muscle weakness. Laboratory investigations reveal low vitamin D, elevated parathyroid hormone and increased alkaline phosphatase. Which compensatory mechanism best explains the elevated parathyroid hormone?
53.
A 63-year-old woman with prolonged swallowing difficulty is being assessed for PEG insertion. She understands the procedure and asks whether she will be able to participate in decisions about future feeding and tube care. Her family requests that the clinician make all decisions without involving her. Which professional approach is most appropriate?
54.
A 16-month-old girl presents with poor weight gain and recurrent infections. Examination reveals bilateral pitting edema of both feet, sparse hair and reduced muscle mass. Her weight appears less severely reduced than expected from her overall clinical appearance. Which interpretation is most appropriate?
55.
A 46-year-old severely malnourished patient is admitted following several weeks of inadequate dietary intake. Nutritional rehabilitation is started, and subsequent investigations reveal a marked reduction in serum phosphate. Which underlying physiological mechanism is primarily responsible for this change?
56.
A 26-month-old child presents with failure to thrive, irritability, sparse hair and swelling of both feet. The mother reports that the child is receiving predominantly starchy foods with very limited dietary diversity. On examination, the child also has extensive skin changes. Which finding is most useful for identifying a severe form of acute malnutrition even before anthropometric measurements are completed?
57.
A 23-month-old child with prolonged poor dietary intake has weight 7.1 kg, length 80 cm and MUAC 11.2 cm. No bilateral pitting edema is present. His weight-for-length measurement is being plotted on a WHO growth chart. Which interpretation is correct?
58.
A 20-month-old boy has completed treatment for severe acute malnutrition. His appetite has improved, and weight and MUAC have increased during supervised rehabilitation. His mother is concerned that malnutrition may recur because of limited household food resources and frequent childhood infections. Which follow-up strategy is most appropriate?
59.
A 20-month-old child from an impoverished household has experienced repeated episodes of diarrhea and progressive weight loss. Anthropometric evaluation shows a very low weight-for-height but a height-for-age within the expected range. Which interpretation best describes this growth pattern?
60.
A 20-month-old girl with severe acute malnutrition has completed initial inpatient stabilization. She is alert, feeding well, maintaining normal temperature and showing improvement in associated infection. Her caregiver is ready to participate in nutritional rehabilitation. Which is the most appropriate next management principle?
