Adult Health Nursing Quizlet Final

Correct Answer: A

Rationale: To help the students better understand the anatomy of the breast, it is crucial to provide visual aids that display both external and internal views of the breast. By sharing various pictures of the breast, students can visually learn about the structure, shape, location of different components, such as lobes, ducts, glands, and lymph nodes. Visual aids enhance the learning experience by providing a clear representation of the complex anatomical features of the breast, aiding in retention and comprehension. This approach can effectively supplement theoretical knowledge with practical visual references, facilitating a comprehensive understanding of breast anatomy.

Correct Answer: C

Rationale: Ventricular tachycardia (VT) is a potentially life-threatening arrhythmia characterized by wide QRS complexes and absence of P waves on electrocardiogram (ECG). Patients with VT may present with symptoms such as chest pain, dyspnea, and syncope due to reduced cardiac output and ineffective pumping of the heart. VT is a serious condition that requires prompt treatment to prevent hemodynamic compromise and potential cardiac arrest. Stable angina typically presents with chest pain that is provoked by exertion and relieved by rest or nitroglycerin. Atrial fibrillation is characterized by an irregularly irregular rhythm with absent P waves on ECG. Supraventricular tachycardia typically presents with a narrow QRS complex on ECG.

Correct Answer: C

Rationale: The patient's presentation of excessive thirst, frequent urination, and fatigue align with the classic symptoms of diabetes mellitus. The laboratory findings of hypernatremia (high sodium levels), hyperglycemia (high blood sugar levels), and metabolic acidosis further support this diagnosis. In diabetes mellitus, the body is unable to properly regulate blood sugar levels due to either insufficient insulin production (Type 1 diabetes) or ineffective use of insulin by the cells (Type 2 diabetes). This leads to high blood sugar levels, causing symptoms such as polyuria (frequent urination), polydipsia (excessive thirst), and fatigue. The metabolic acidosis is a result of the body's breakdown of fats and proteins for energy due to the lack of glucose utilization in the cells.

Correct Answer: C

Rationale: Progesterone in oral contraceptives works primarily by inhibiting ovulation. It suppresses the secretion of luteinizing hormone (LH) from the pituitary gland, which is essential for triggering the release of an egg (ovulation) from the ovary. By blocking ovulation, progesterone helps prevent pregnancy by making it less likely for a mature egg to be available for fertilization. This mechanism of action is a key factor in the effectiveness of progesterone-containing contraceptives in preventing pregnancy.

Correct Answer: B

Rationale: The patient's presentation with recurrent episodes of vertigo, nausea, and nystagmus triggered by head movements, along with a positive Dix-Hallpike maneuver eliciting positional vertigo and rotary nystagmus, is classic for Benign Paroxysmal Positional Vertigo (BPPV). BPPV is the most common cause of vertigo due to a mechanical problem in the inner ear. In BPPV, brief episodes of vertigo are typically triggered by specific head movements, such as rolling over in bed or looking up. The characteristic rotary nystagmus observed in BPPV is consistent with the brief, intense episodes of vertigo that patients experience. The Dix-Hallpike maneuver, commonly used to diagnose BPPV, involves moving the patient from sitting to a supine head-hanging position and can induce vertigo and nystagmus in affected