QuestionSBA
QuestionChoice
Streptococci are gram-positive bacteria which would best be detected by a gram stain.
10000569
d
*Streptococcus pneumoniae*
QuestionChoice
PJP can be detected using a variety of stains. However, it is usually detected using the Beta-D-Glucan blood test which identifies the cell wall present in this type of fungi.
10000568
c
*Pneumocystis jirovecii* pneumonia (PJP)
QuestionChoice
Zeihl-Neelsen staining is used to test for TB. The sample is stained, heated and washed in an acid solution. The TB bacteria (*Mycobacterium tuberculosis*) are resistant to the acid wash and remain stained so are described as acid-fast bacilli. They appear as distinctive bright-red bacilli against a blue background.
10000566
a
Tuberculosis (TB)
QuestionChoice
*H. influenzae* can be tested for by gram-staining, appearing as small gram-negative coccobacilli.
10000567
b
*Haemophilus influenzae*
QuestionChoice
This is an infection caused by inhalation of aspergillus (a common type of mould). Silver stains (e.g. a Gridley stain) are used to stain Aspergillus.
10000570
e
Aspergillus
Concept
Chapter
2693
3790
Tuberculosis
Topic
147
Infectious disease
12660
A sputum culture taken from a patient is stained using a Ziehl-Neelsen stain.

Which of the following organisms is this staining process used to identify?
a