An occupational health nurse is providing teaching to a group of factory workers about proper lifting techniques.
Which of the following statements should the nurse make?

Choice A rationale:

The described cardiac rhythm with a wavy baseline, no distinguishable P waves, and an increased heart rate is consistent with atrial fibrillation. In atrial fibrillation, the atria quiver instead of contracting effectively, leading to an irregular and often rapid heart rate. This rhythm is characterized by the absence of distinct P waves on the ECG.

Choice B rationale:

Ventricular asystole is a flatline on the ECG, indicating the absence of electrical activity in the heart. It is a life-threatening arrhythmia and requires immediate intervention with cardiopulmonary resuscitation (CPR) and advanced cardiac life support (ACLS) protocols.

Choice C rationale:

Second-degree heart block is characterized by intermittent failure of atrial electrical impulses to conduct to the ventricles. This results in occasional dropped beats and a varying heart rate. It is not consistent with the described ECG findings in the question.

Choice D rationale:

Sinus tachycardia is a regular, fast heart rate originating from the sinoatrial (SA) node. In sinus tachycardia, P waves are present, indicating that the electrical impulses originate in the SA node. The described ECG findings do not match the characteristics of sinus tachycardia.

The correct answer is C. Believes his bad behavior is causing his brother's death. This is an example of magical thinking, which is common among school-age children (6 to 12 years old). Magical thinking is the belief that one's thoughts or actions can influence events or outcomes that are beyond one's control. School-age children may feel guilty or responsible for their sibling's illness or death and may try to bargain or change their behavior to prevent it.