A thick blood film is positive for malaria parasites. Which specimen examination is most useful next for species identification and percent parasitemia?
1A well-prepared thin blood film✓ 정답
2A urine sediment wet mount
3A sputum acid-fast smear
4A serum heterophile antibody test
해설
The thick film concentrates parasites and is useful for detection. The thin film preserves red-cell and parasite morphology, supporting species identification and calculation of the percentage of infected red cells.