A nurse is assisting with teaching a class about the importance of fire safety. Which of the following hazards should the nurse include as an example of the leading cause of residential fires?

Placing a space heater 5 ft from bed

Smoking in bed

Leaving the stove on

Lack of smoke detectors

Answer and Explanation

The Correct Answer is B

Choice A reason: A space heater 5 feet from a bed is relatively safe if unobstructed, not a leading fire cause. Scientifically, heaters rank lower than smoking, as ignition requires closer flammable contact, making this less statistically significant per fire safety data.

Choice B reason: Smoking in bed is a top cause of residential fires, as embers easily ignite bedding. Scientifically, NFPA data show it’s a leading ignition source due to direct fuel contact, causing rapid flame spread, making it a critical hazard to highlight.

Choice C reason: Leaving the stove on causes kitchen fires, but smoking surpasses it in residential fatalities. Scientifically, unattended cooking ranks high, yet smoking’s bedroom context increases risk of sleeping victims, amplifying danger per fire incidence studies.

Choice D reason: Lack of smoke detectors increases fire deaths, not ignition. It’s a detection failure, not a cause. Scientifically, this affects outcomes, not initiation, making it irrelevant to identifying the leading hazard source per fire safety causation statistics.

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Correct Answer is A

Explanation

Choice A reason: Shoulder harnesses at shoulder level secure the infant, distributing crash forces evenly. Scientifically, this aligns with safety standards, preventing spinal injury by stabilizing the torso, a critical car seat feature per biomechanical crash studies for optimal protection.

Choice B reason: A cushion under the head risks airway obstruction or spinal misalignment in crashes. Scientifically, added padding alters manufacturer design, increasing injury risk, as car seats are engineered for direct fit without extras per safety regulations.

Choice C reason: A 90-degree angle is upright, risking airway collapse in newborns with weak necks. Scientifically, a 30-45-degree recline supports breathing and spinal alignment, making this unsafe per pediatric and crash safety evidence.

Choice D reason: Airbags in the front seat can fatally injure infants in rear-facing seats via rapid inflation. Scientifically, back-seat placement avoids this, as airbag force exceeds infant tolerance, contradicting safety mandates for car seat positioning.

A. Medications for a cardiac anomaly B. Chemotherapy treatments C. Two diarrhea stools in the last day D. Clear rhinorrhea

Correct Answer is B

Explanation

Choice A reason: Cardiac medications don’t contraindicate varicella vaccine, a live virus. Unless immunocompromised (e.g., via steroids), cardiac conditions don’t impair immunity enough for risk. Scientifically, this lacks evidence as a barrier, as the vaccine’s safety profile supports use in stable cardiac cases without immune suppression.

Choice B reason: Chemotherapy suppresses immunity, making live vaccines like varicella dangerous due to risk of unchecked viral replication. This contraindication is scientifically grounded, as immunocompromised states (e.g., from cancer treatment) heighten infection risk, necessitating delay until immune recovery per vaccination guidelines.

Choice C reason: Two diarrhea stools in a day isn’t a contraindication unless severe or linked to immunosuppression. Mild illness doesn’t preclude live vaccines; varicella can be given unless fever or systemic compromise exists. Scientifically, this is insufficient to halt immunization based on current evidence.

Choice D reason: Clear rhinorrhea from a cold isn’t a contraindication for varicella vaccine. Mild respiratory symptoms without fever don’t impair immune response significantly. Scientifically, guidelines allow vaccination during minor illnesses, as it poses no increased risk, distinguishing it from severe immune deficits.

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A nurse is assisting with teaching a class about the importance of fire safety. Which of the following hazards should the nurse include as an example of the leading cause of residential fires?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reinforcing teaching with new parents about car seat safety. Which of the following instructions should the nurse include?

Correct Answer is A

Explanation

A nurse is reviewing the medical record for a child who is scheduled to receive a varicella immunization. Which of the following findings in the client's record should the nurse recognize as a contraindication?

Correct Answer is B

Explanation

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