A nurse is monitoring a client who is receiving a unit of packed red blood cells (RBCs) following surgery. Which of the following assessments is an indication that the client might be experiencing circulatory overload?

Choice A reason: Distended neck veins is not a manifestation of acute hemolytic reaction, but it may indicate fluid overload, which is another possible complication of blood transfusion. Fluid overload may occur when the blood volume or rate of infusion exceeds the client's circulatory capacity. Fluid overload may manifest as dyspnea, crackles, edema, hypertension, or tachycardia.

Choice B reason: Client report of low back pain is a manifestation of acute hemolytic reaction, which is a life-threatening condition that occurs when the donor blood is incompatible with the recipient's blood. Acute hemolytic reaction may occur within minutes or hours of the transfusion and may cause the destruction of the transfused red blood cells. Acute hemolytic reaction may manifest as fever, chills, low back pain, hemoglobinuria, hypotension, or shock.

Choice C reason: A productive cough is not a manifestation of acute hemolytic reaction, but it may indicate a respiratory infection, which is a potential risk of blood transfusion. Blood transfusion may transmit infectious agents, such as bacteria, viruses, or parasites, from the donor to the recipient. A productive cough may also be a sign of pulmonary edema, which may result from fluid overload or transfusion-related acute lung injury (TRALI).

Choice D reason: Client report of tinnitus is not a manifestation of acute hemolytic reaction, but it may indicate ototoxicity, which is a possible adverse effect of some medications, such as aminoglycosides, loop diuretics, or salicylates. Ototoxicity may damage the inner ear or the auditory nerve and cause hearing loss, tinnitus, or vertigo. The nurse should assess the client's medication history and monitor the client's hearing function.

Choice A reason: Blood pressure 160/94 mm Hg is not a reason to withhold atenolol, as it is a beta-blocker that lowers blood pressure and reduces the workload of the heart. Atenolol is indicated for hypertension, angina, and arrhythmias. The nurse should administer atenolol as prescribed, unless the blood pressure is too low (hypotension).

Choice B reason: Heart rate 46/min is a reason to withhold atenolol, as it is a sign of bradycardia (slow heart rate), which can be a side effect of atenolol. Atenolol can decrease the heart rate by blocking the beta-1 receptors in the heart. The nurse should withhold atenolol if the heart rate is below 60 beats per minute or above 100 beats per minute, and report the finding to the provider.

Choice C reason: Oxygen saturation 95% is not a reason to withhold atenolol, as it is a normal value that indicates adequate oxygenation of the blood. Atenolol does not affect the oxygen saturation or the respiratory function. The nurse should monitor the oxygen saturation regularly, and report any signs of hypoxia (low oxygen level).

Choice D reason: Respiratory rate 18/min is not a reason to withhold atenolol, as it is a normal value that indicates normal breathing. Atenolol does not affect the respiratory rate or the respiratory function. The nurse should monitor the respiratory rate regularly, and report any signs of dyspnea (difficulty breathing).