How to Answer STE404 Assessment 2: Spaulding and Tikanga

To answer STE404 Assessment 2 well, you need to do three things in roughly 500 words per task: put the microbial resistance hierarchy in the correct order with a real organism and infection at every level, use Spaulding’s classification to justify the processing level for items you actually reprocess, and explain tikanga Māori (tapu and noa) as a practical part of safe sterile services work rather than an add-on. Marks are lost mostly through a mis-ordered hierarchy, generic examples and a cultural section with no workplace action in it.

Want a second pair of eyes on your plan? You can talk to our nursing and health assignment team before you start writing.

What the brief really asks

The assessment is worth 50 per cent of the course and is submitted as one file through iQualify. It has two tasks of about 500 words each, each worth 50 marks. Task 1 starts from a colleague’s question: why can some blood-borne viruses be destroyed by disinfection while other microbes need sterilisation? Task 2 starts from a scenario in which contaminated instruments are placed on the floor, which is unsafe for infection control and disrespectful under tikanga Māori. Your job is to explain the science, apply it to your own unit, and show a respectful professional response. The brief does not name a referencing style, so check the iQualify instructions or ask your tutor before you format anything. You can see the full wording on the STE404 Assessment 2 question page.

Word and mark split

These splits are a planning aid, not an official allocation. Marks follow depth, so give the 15-mark and 25-mark parts more space than their word share might suggest and keep the hierarchy table compact.

Step-by-step plan

1. Write the hierarchy from least to most resistant in a table: lipid-enveloped viruses, vegetative bacteria, fungi, non-enveloped viruses, mycobacteria, coccidia, bacterial spores, prions. Check the order against your course notes and a recognised guideline such as the CDC disinfection and sterilisation guideline.
2. Add a named organism and a named infection for every level. Include hepatitis B, hepatitis C or HIV at the lipid-enveloped level, and say they are blood-borne.
3. Explain Spaulding’s three categories, then give two or three items from your own unit for each, such as surgical instruments, flexible endoscopes and trolleys, and state the minimum process each needs.
4. Describe spore structure (core, cortex, coat) and contrast it with a virus particle, then argue why critical items are always sterilised.
5. For the floor scenario, write the infection control reasoning and the tikanga reasoning as two separate paragraphs.
6. Draft the conversation with your colleague as a sequence: private, calm, curious, informed, with a clear follow-up.
7. Link tapu and noa to partnership, participation and protection, and close with one specific, measurable team improvement.

How to reach the higher bands

Top-band answers are accurate, complete and linked. Accuracy means the hierarchy is in the right order and the terminology is exact: say “high-level disinfection”, “sterilisation” and “lipid-enveloped” instead of vague phrases such as “strong cleaning”. Completeness means every level has an organism and an infection, not just the ends. Linkage means each decision is tied to the next: the resistance of the organism determines the Spaulding category, the category determines the process, and the process either does or does not interrupt transmission. Using one consistent example, such as a contaminated instrument tray, through the whole answer helps a marker see that connection.

For the cultural task, show that you understand why the practice exists, not only what it is. Keep your explanation general and respectful, avoid inventing rules that you have not learned from your workplace or from Māori colleagues, and say where you would seek guidance. A strong answer treats cultural safety as something judged by the people you work with and care for, which is a standard that Aotearoa health regulators describe in their te Tiriti statements.

Prefer to see structure first? Our STE404 Assessment 2 sample answer is provided for reference only and shows how the tables and headings can be laid out.

Using your own workplace evidence

Both tasks reward specific, workplace-grounded detail. When you reach the Spaulding question, picture the last week on your unit and list what actually came through the door: rigid instrument sets from theatre, flexible scopes, anaesthetic circuits, trays, trolleys and transport containers. Assign each to a category and name the process it received, for example a washer-disinfector cycle followed by steam sterilisation. If you do not reprocess a particular item category, say so honestly and use an item you do handle. Markers are looking for evidence that you understand the reasoning, and invented equipment makes that harder to see.

For the hierarchy, a short sentence explaining why each level sits where it does lifts an answer above a bare list. Lipid envelopes are easily disrupted, ordinary vegetative bacteria lack a protective coat, mycobacteria have a waxy cell wall, spores have a coat and cortex, and prions are misfolded proteins that conventional processes do not reliably inactivate. One clause per level is enough and keeps you inside 200 words.

In the scenario question, structure is your friend. Open with the hazard, state the infection control consequence, then state the cultural consequence, and finish with the corrective action. In the professional response, avoid language that sounds like discipline. Phrases that invite conversation, such as asking what the colleague was trying to achieve at the time, tend to read as more mature than a rule recital. Your closing improvement should name who would do what and when, so a marker can picture it happening.

Mark-maximising checklist

• The hierarchy runs in a single, consistent direction, and you say which direction.
• Each of the eight levels you list has a specific organism and an infection.
• At least one blood-borne virus is named, with an explanation of why it is relatively easy to inactivate yet still needs thorough cleaning first.
• Critical, semi-critical and non-critical examples come from reprocessing you really do.
• You mention cleaning as the first step in every category.
• The spore explanation covers structure and resistance, not just “spores are tough”.
• Infection control and tikanga reasoning are separated in the floor question.
• Your response to the colleague is private, respectful, specific and has a follow-up step.
• The team improvement is practical, owned by someone and checkable.
• You have stayed within the word guidance for each task and checked the referencing instructions.

Common mistakes

The most frequent error is reversing the hierarchy or placing mycobacteria or non-enveloped viruses below fungi. The second is giving a category such as “virus” without distinguishing enveloped from non-enveloped types. The third is describing Spaulding’s classification in the abstract and never naming an item from the sterile services unit. In the cultural task, students often write about tikanga as if it were separate from the technical task, or they make confident claims about specific protocols that they cannot support. Another common problem is a professional response that accuses the colleague instead of explaining and offering a solution. Finally, many students ignore the word guidance and spend most of the space on Task 1.

Running short of time before the deadline? You can ask for help with your assignment and send your brief and marking schedule so the support matches your criteria.

FAQs

Do I need to list every level of the resistance hierarchy?

Yes. The marking approach rewards a complete hierarchy in the correct order, with an organism and infection for every level, so include all levels your course teaches.

Which blood-borne viruses should I use as examples?

Hepatitis B, hepatitis C and HIV are the standard choices. They are lipid-enveloped, so they sit at the least resistant end, although hepatitis B virus is notably stable in the environment.

Why are blood-borne viruses sometimes disinfected but spores always sterilised?

Enveloped viruses are fragile and are inactivated by appropriate disinfectants, while spores resist most chemical agents and can cause infection if placed into sterile tissue. Critical items therefore go through sterilisation.

Should I use first person in the professional response?

Yes, because the question asks how you would respond. Describe what you would say and do, in order, and keep the tone calm and respectful.

How much detail on tikanga is safe to include?

Keep to what you have learned in your course and workplace, such as tapu and noa and the separation of body-related items from food-related spaces, and say you would consult Māori colleagues or cultural advisers for anything more specific.

Which referencing style should I use?

The brief does not state one, so confirm with your tutor or the iQualify instructions. Whichever style you use, cite recognised guidelines and official New Zealand health pages and apply the style consistently.

If you would like structured feedback on your STE404 plan, share your brief through our submission page and we will advise on scope and timing; you can also read how our team works first. The companion assessment is covered on the STE404 Assessment 1 question page.