Which observation indicates that the client is having difficulty breathing when a nurse assesses a client's respiratory status?

Use of accessory muscles-rationale: the use of accessory muscles for respiration indicates the client is having difficulty breathing. diaphragmatic and pursed-lip breathing are two controlled breathing techniques that help the client conserve energy.client needs category: physiological integrityclient needs subcategory: physiological adaptationcognitive level: analysisreference: smeltzer, s.c., et al. brunner & suddarths textbook of medical-surgical nursing, 11th ed. philadelphia: lippincott williams & wilkins, 2008, p. 563.