# The nurse measures a client’s upper-arm circumference with a tape whose zero end is damaged. For this selection task, the target bladder dimensions are approximately 40% of the circumference in width and 80% in length. Click the bladder closest to both targets.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=581204&lang=en  
> language: en  
> subject: Reduction of Risk Potential  
> category: ROR

## Question

The nurse measures a client’s upper-arm circumference with a tape whose zero end is damaged. For this selection task, the target bladder dimensions are approximately 40% of the circumference in width and 80% in length. Click the bladder closest to both targets.

![](https://mymerci.kr/data/nclex/hotspot/regen_20260908_2350/HSR541.svg)

## Explanation

C measures 14 × 28 cm, closest to the 13.6 × 27.2 cm targets for a 34-cm arm.

## In-depth explanation

Quick answer
C. C measures 14 × 28 cm, closest to the 13.6 × 27.2 cm targets for a 34-cm arm.
Why this is the best choice
The tape spans 14 to 48 cm, so circumference is 34 cm, not 48 cm. Multiply by the stated proportions, then use the common scale to compare both dimensions. The dimensions are an explicit teaching target, not a universal replacement for manufacturer fit markings.
Clinical picture
The observations are fictional teaching data. Apply the stated context; the selected feature does not by itself replace a complete bedside assessment.
Memory hook
Subtract the measurement origin and compare both bladder dimensions.
Decision rule
Subtract the measurement origin and compare both bladder dimensions.
Why the other regions do not fit
A is 10 × 24 cm and too small on both dimensions. B is 12 × 30 cm: its length is plausible but it is narrower than the target. D is 16 × 36 cm and exceeds both targets.
**Sources**
- An appropriately fitted cuff is important for an accurate measurement; this item states its own numerical sizing target.

## Key concepts

- **Cuff geometry with a nonzero measurement origin** — Subtract the measurement origin and compare both bladder dimensions.
- **Comparison with context** — B has a plausible length, but C better matches both required dimensions.

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