Leucopenia is

Options

A. more production WBC
B. more production RBC
C. Excess platelets
D. Less production of WBC

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Leucopenia":**
- Leucopenia refers to a medical condition characterized by a lower than normal number of white blood cells (WBCs) in the blood.

2. **Evaluating the Options:**
- **Option 1:** "More production from white blood."
- This option is incorrect because an increase in white blood cells is termed leukocytosis, not leucopenia.

- **Option 2:** "More production RBC."
- This option is also incorrect. Increased red blood cell production is referred to as polycythemia, not leucopenia.

- **Option 3:** "Excess platelets."
- This option is incorrect as well. An increase in platelets is known as thrombocytosis, not leucopenia.

- **Option 4:** "Less production of WBC."
- This option is correct. Leucopenia is indeed defined as a condition where there is a decreased production of white blood cells.

3. **Conclusion:**
- Based on the evaluation of the options, the correct answer is that leucopenia is a condition characterized by less production of white blood cells.

**Final Answer:** Leucopenia is a condition where there is less production of white blood cells (WBCs).

---