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Best practice in healthcare facilities management is to keep one critical spare part for each unique piece of patient-care equipment (not for every unit). This approach balances patient safety and risk mitigation while avoiding excessive storage costs.

A: “As needed” creates downtime risk.

B: Annual bulk purchase may leave gaps in urgent needs.

D: One-for-one spares is excessive, costly, and impractical.

Predictive maintenance involves techniques that monitor the condition of equipment to anticipate failure before it occurs. Common predictive techniques include:

Vibration monitoring (1) – Detects imbalance, misalignment, or bearing wear.

Oil analysis (2) – Identifies contamination, wear particles, or breakdown in lubricants.

Ultrasound (4) – Detects leaks, arcing, and mechanical friction.

PM frequency analysis (3) is part of preventive maintenance, not predictive maintenance.

The CHFM exam Financial Management domain requires knowledge of cost savings and revenue generation calculations from operational changes such as recycling initiatives. In this example, gross revenue is calculated by summing the total recycling income streams (cardboard and aluminum).

Correct Answer (C. $7,200): Derived from combining $6,000 (cardboard) and $1,200 (aluminum) revenue.

Other options are incorrect because:

A ($6,000): Considers cardboard only.

B ($6,600): Misapplies aluminum tonnage conversion.

D ($18,000): Exaggerates revenue beyond calculated amounts.

A Ground-Fault Circuit Interrupter (GFCI) continuously monitors the current balance between the “hot” and “neutral” conductors. If an imbalance greater than about 5 milliamps occurs (indicating leakage current flowing to ground), the GFCI trips instantly to protect personnel from shock.

Correct (D): Current – GFCIs detect differences in current between conductors.

Incorrect: Resistance (A), Voltage (B), and Power (C) are not directly monitored by GFCIs.