Identifying Causes of Hypokalemia
The question asks to identify which condition among the choices is NOT a cause of hypokalemia (low blood potassium levels).
Conditions Causing Hypokalemia
- ACTH Producing Tumors: Tumors producing Adrenocorticotropic hormone (ACTH) lead to excess cortisol and aldosterone secretion. Aldosterone increases renal excretion of potassium, causing hypokalemia.
- Non-bilious Vomiting: Significant loss of gastric fluid through vomiting leads to loss of hydrochloric acid (HCl) and potassium, contributing to hypokalemia.
- Diabetic Ketoacidosis (DKA): DKA causes osmotic diuresis, leading to substantial potassium loss in urine. Additionally, treatment with insulin and correction of acidosis can shift potassium into cells, revealing or worsening hypokalemia.
Condition Not Typically Causing Hypokalemia
Tamoxifen Therapy: Tamoxifen is primarily used in breast cancer treatment. While it has various side effects, it is not generally recognized as a direct cause of hypokalemia.
Conclusion
Based on the known causes of electrolyte disturbances, Tamoxifen therapy is the condition listed that does not typically cause hypokalemia.
Important Questions from Fluid Balance in Surgery
Which of the following are approximate daily requirements of the common electrolytes in an adult?
1. Sodium 50-90 mM/day
2. Calcium 1 mM/day
3. Potassium 50 mM/day
4. Magnesium 1 mM/day
Select the correct answer using the code given below.
- Which one of the following statements regarding the composition of common crystalloid solutions is correct?
- Oliguria is defined as:
Which of the following is NOT considered as an indicator of adequate fluid resuscitation?
- Non-cardiac cause of raised central venous pressure include all of the following except :
