Question:easy
Ideal temperature for DPT storage?
Ideal temperature for DPT storage?
Show Hint
DPT is freeze-sensitive, so it stays in the refrigerator, not the freezer.
Updated On: Jun 24, 2026
- Room temperature
- 4 to 8 degree C
- 0 to -20 degree C
- None
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Group the vaccine. DPT, DT, TT, and Hepatitis B are the freeze-sensitive vaccines that lose potency if frozen, while OPV and measles tolerate deep freezing.
Step 2: Because DPT is freeze-sensitive, the safe zone at the peripheral level of the cold chain is the refrigerator compartment held at 4 to 8 degree C.
Step 3: Eliminate the others. Room temperature is unsafe heat exposure, and a 0 to -20 degree C freezer would solidify and inactivate DPT.
\[\boxed{4 \text{ to } 8\ ^{\circ}\text{C}}\]
Step 2: Because DPT is freeze-sensitive, the safe zone at the peripheral level of the cold chain is the refrigerator compartment held at 4 to 8 degree C.
Step 3: Eliminate the others. Room temperature is unsafe heat exposure, and a 0 to -20 degree C freezer would solidify and inactivate DPT.
\[\boxed{4 \text{ to } 8\ ^{\circ}\text{C}}\]
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