Medical Quiz

Fluid and Electrolytes Quiz


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A child weighs 25 kg. What is the child’s daily maintenance fluid requirement per hour? (Round to whole number)

A. 1600 mL/hr

B. 67 mL/hr

C. 66 mL/hr

D. 67 L/hr


An infant has been diagnosed with moderate dehydration and is now going to be given parenteral fluid therapy. What do we give the infant?

A. D51/2NS 5ml/kg bolus over 1 hr

B. D51/4NS 50ml/kg bolus over 20 min

C. NS or LR 20ml/Kg bolus over 20 min

D. Popsicles


How much more body surface area in a premature infant than an adult?

A. 3x larger than an adult

B. 4x larger than an adult

C. 5x larger than an adult

D. 6x larger than an adult


What is given to an infant with nausea and vomiting first thing with treatment of dehydration?

A. Ibuprofen

B. Aspirin

C. Ondansetron (Zofran)

D. Acetaminophen (Tylenol)


A child weighs 9.5 kg and needs to be given daily fluids via pump rate. How much do we give mL/hr? (round to whole number)

A. 29 L/hr

B. 29 mL/hr

C. 40 mL/hr

D. 40 L/hr


What is the most dangerous form of dehydration?

A. Hypotonic

B. Hypertonic

C. Isotonic


A nurse is caring for a child with hyperkalemia and has an order of daily fluid requirements with potassium chloride. The ER nurse had stated that the child has not voided yet. What is the nurses next step?

A. Give daily fluid requirement with the potassium chloride.

B. Give the daily fluid requirement without the potassium chloride and document that you will give it later.

C. Give the daily fluid requirement without the potassium chloride and document that the patient has not voided yet.

D. Wait till the patient has voided to give both daily requirement and potassium chloride.


What is the last to drop in a child with dehydration?

A. Wt. loss

B. BP

C. RR

D. Cap. refill


A child weighs 98 lbs. What is the child’s daily maintenance fluid requirement per hour? (round to whole number)

A. 83 mL/hr

B. 1990 mL/hr

C. 82 L/hr

D. 1990 L/hr


An infant came to the ER with symptoms of vomiting and diarrhea. The patient has lost a total of 6% of their body weight and is irritable, eyes are slightly sunken, and has a decreased amount of tears. What category and degree is this infants dehydration?

A. Mild, Isotonic

B. Severe, Hypotonic

C. Moderate, Hypertonic

D. Moderate, Isotonic


After giving a patient with moderate to severe dehydration parenteral fluid therapy and now showing normal vitals. What do we give to maintain it?

A. NS

B. D51/4NS

C. LR


What is the primary cause of hyperkalemia?

A. renal insufficiency

B. vomiting

C. fever

D. diuretics


An child needs to be given LR 20mL/kg/24hr bolus STAT due to severe dehydration. The patient weighs 14 kg. How much do we give in ml/hr? (Round to whole number)

A. 11 mL/hr

B. 12 mL/hr

C. 12 L/hr

D. 11 L/hr


What form of dehydration can result in permeant damages to CNS?

A. Isotonic

B. Hypotonic

C. Hypertonic


A nurse is caring for a child that weighs 46 kg. What is the child’s maintenance fluid requirement in milliliters per hour? (round to whole number)

A. 2020 mL/hr

B. 85 mL/hr

C. 2020 L/hr

D. 84 mL/hr


Knowing that fever can cause an infant to be dehydrated. How much fluid loss for every 1 Degree Celcius rise in temperature? 

A. 8 mL/kg/24hr

B. 7 mL/kg/24hr

C. 5 mL/kg/24hr

D. 7 L/kg/24hr


What is dehydration?

A. Total output of fluids exceeds the total intake.

B. Total intake of fluids exceeds the total output.

C. Total of input and output are equal.

D. Total of intake


An infant comes to the ER with a sunken anterior fontanel and has lost 9% of their body weight. Mother has been complaining that infant has been urinating dark color urine and has been crying with barely any tears. What degree of dehydration is this?

A. Mild

B. Moderate

C. Severe

D. Mild and Moderate


What is the greatest threat to a child that has been vomiting and having diarrhea ?

A. Fatigue due to dehydration

B. Seizure due to electrolyte imbalances

C. Hypovolemic shock due to hypotonic dehydration

D. Hypovolemic shock due to isotonic dehydration


Labs have been drawn to see if there has been any fluid and electrolyte imbalances in a child. What abnormality indicates a hypotonic dehydration?

A. Plasma Na 130-150 mEq/L

B. Plasma Na greater than 150 mEq/L

C. Serum Na less than 130 mEq/L

D. Plasma Na 140 mEq/L


What is a major cause of hypokalemia?

A. Kidney insufficiency

B. liver damage

C. Increased potassium excretion through the GI tract

D. Cardiac arrhythmias


How much larger in body surface area is that in an infant to an adult?

A. 2-3x than an adult

B. 5-6x than an adult

C. 1-2x than an adult

D. 3-4x than an adult




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