Correct Answer: A

Rationale: The correct answer is A: Administer bronchodilators. During an acute asthma attack, the priority intervention is to immediately open the airways to improve breathing. Bronchodilators, such as albuterol, work rapidly to dilate the bronchioles and relieve bronchospasms, making it the most effective initial treatment. Corticosteroids (B) are used for long-term control, not immediate relief. Applying oxygen and administering albuterol (C) is close, but bronchodilators should be given first for quicker relief. Applying a cold compress (D) is not appropriate for managing an asthma attack.

Correct Answer: A

Rationale: The correct answer is A: Administer oxygen. This is the most important intervention for a client with an obstructed airway because it helps to ensure that the patient is receiving adequate oxygen supply to prevent hypoxia. Oxygen therapy can help maintain oxygen saturation levels and support proper gas exchange in the lungs. Monitoring respiratory rate (B) is important but not as critical as ensuring oxygen supply. Administering morphine (C) is contraindicated as it can depress respiratory function further. Administering fluids (D) is not the priority in managing an obstructed airway.

Correct Answer: A

Rationale: The correct answer is A: Administer glucose. The nurse's first action in treating hypoglycemia is to increase the client's blood glucose levels to prevent further complications. Administering glucose helps quickly raise blood sugar levels, addressing the immediate issue. Options B, C, and D are incorrect as administering insulin would further decrease blood sugar levels, administering oxygen is not the primary intervention for hypoglycemia, and administering antipyretics is used for reducing fever, not treating hypoglycemia.

Correct Answer: A

Rationale: The proper hand position for chest percussion is to cup the hands, creating a hollow space to allow for effective transmission of percussion vibrations. Cupping the hands helps to produce the desired percussion sound and ensures proper force distribution. Using the side of the hands (B) may not provide enough surface area for effective percussion. Flattening the hands (C) may not generate the desired percussive effect, and spreading the fingers of both hands (D) can result in uneven force application. Therefore, cupping the hands is the most appropriate hand position for chest percussion.

Correct Answer: A

Rationale: The correct answer is A: Monitor aPTT levels. This is crucial in intravenous heparin therapy to ensure the therapeutic range is maintained for anticoagulation without causing bleeding. Monitoring aPTT helps adjust heparin dosage to prevent clot formation or excessive bleeding. B: Monitoring for bleeding is important but not the most important action compared to monitoring aPTT levels for appropriate dosing. C: Checking platelet count is important for some anticoagulants like heparin, but aPTT monitoring is more directly related to heparin's anticoagulant effect. D: Administering a heparin antidote (protamine sulfate) is necessary in case of heparin overdose or in emergency situations but is not the primary action in routine care.