Which of the following is a major teaching point for patients prescribed beta blockers?

Choice A reason: Laying the infant with the head lower than the body worsens cyanosis in tetralogy of Fallot by reducing systemic venous return. The knee-to-chest position increases resistance, improving oxygenation, making this incorrect, as it indicates a need for further teaching on proper positioning.

Choice B reason: Holding the infant against the shoulder with knees bent up toward the chest is the correct knee-to-chest position for tetralogy of Fallot during cyanosis. This increases systemic vascular resistance, reducing right-to-left shunting and improving oxygenation, indicating the father’s understanding of the instructions.

Choice C reason: Placing the infant upright in an infant seat does not effectively increase systemic vascular resistance to reduce shunting in tetralogy of Fallot. The knee-to-chest position is required, making this incorrect, as it shows a need for teaching on the correct positioning to manage cyanosis.

Choice D reason: Supine position with head elevated does not address cyanosis in tetralogy of Fallot, as it fails to increase systemic resistance to reduce shunting. Knee-to-chest positioning is needed, making this incorrect, as it indicates misunderstanding of the proper technique to improve oxygenation.

Choice A reason: Avoiding cold temperatures prevents vasospasm in Buerger’s disease but is secondary to tobacco cessation, the primary driver of disease progression. Cold exacerbates symptoms, but smoking causes the underlying inflammation and thrombosis, making this a less critical initial focus for teaching.

Choice B reason: Meticulous hygiene prevents infection in ischemic tissues but does not address the primary cause of Buerger’s disease progression, which is tobacco use. Hygiene is supportive but secondary, making this an incorrect initial focus compared to eliminating the disease’s main trigger.

Choice C reason: A low-saturated fat diet reduces atherosclerosis risk but is not the primary intervention for Buerger’s disease, which is driven by tobacco-induced inflammation and thrombosis. While beneficial for cardiovascular health, it is secondary to smoking cessation, making this an incorrect initial teaching focus.

Choice D reason: Abstaining from tobacco is the primary intervention for Buerger’s disease, as smoking causes inflammatory thrombosis, leading to vessel occlusion and ischemia. Cessation halts disease progression, reducing pain and tissue damage, making this the nurse’s initial focus to effectively manage and prevent worsening of the condition.