Vitamin Toxicities

Vitamin A

Increased intracranial pressure, nausea, headache, joint pain, coma, liver damage, birth defects in developing fetus.

Vitamin D

hypercalcemia, nausea, vomiting, muscle weakness, dehydration

Vitamin E

impaired blood coagulation and increased risk of bleeding

E = too much blEEding

Vitamin K

low potential for toxicity but increased vitamin K can decrease the effects of warfarin

pt who take warfarin must keep a consistent intake of this vitamin

Hypermagnesemia

hypotension, lethargy, muscle weakness, decreased DTR, respiratory depression, dysrhythmias, cardiac arrest

Hyperphosphatemia

same as HYPOcalcemia (positive Chvostek's and Trousseau's signs, muscle spasms)

Hyperkalemia (Potassium Excess)

dysrhythmias, muscle weakness, paresthesia, diarrhea

hypernatremia (sodium excess)

thirst, lethargy, confusion, GI upset, muscle twitching, seizures, irritability, agitation

Calcium

kidney stones, GI upset, constipation, bone pain, muscle weakness, confusion

vitamin C toxicity

GI distress, diarrhea