Health assessment involves systematically collecting both subjective and objective data about a patient's general physical and mental condition using the senses. It is a holistic process that considers the patient, family, healthcare providers, and environment. Nurses collect data through comprehensive assessments, ongoing assessments, focused assessments, and emergency assessments. Effective communication is important during the assessment process and involves both verbal and nonverbal skills like active listening, clarifying, and reflecting. Building trust and rapport with patients through genuineness, respect, and empathy also supports quality assessments.