A nurse is caring for a child who has pertussis. The child's parent asks the nurse what the common name for this disease is. The nurse should respond with which of the following common names?

Choice A: Using a pincer grasp indicates a need for further evaluation, as it is a developmental milestone that is usually achieved by 9 to 10 months of age. A pincer grasp is the ability to pick up small objects using the thumb and index finger. A 7-month-old infant should be able to use a raking grasp, which is the ability to scoop up objects using all fingers.

Choice B: Having a fear of strangers does not indicate a need for further evaluation, as it is a normal and expected behavior for a 7-month-old infant. A fear of strangers is a sign of attachment and recognition of familiar and unfamiliar faces. A 7-month-old infant may cry, cling, or turn away from strangers.

Choice C: Showing preferences towards foods does not indicate a need for further evaluation, as it is a normal and expected behavior for a 7-month-old infant. Showing preferences towards foods is a sign of individuality and taste development. A 7-month-old infant may accept or reject certain foods based on their flavor, texture, or appearance.

Choice D: Babbling one-syllable sounds does not indicate a need for further evaluation, as it is a normal and expected behavior for a 7-month-old infant. Babbling one-syllable sounds is a sign of language and communication development. A 7-month-old infant may make sounds such as "ba", "da", "ga", or "ma".

Choice A: Loosening restrictive clothing is not the priority action, but rather a secondary action for a child who is having a tonic-clonic seizure and vomiting. A tonic-clonic seizure is a type of seizure that involves the stiffening of muscles (tonic phase) followed by jerking movements (clonic phase). Loosening restrictive clothing can prevent injury or discomfort to the child during or after the seizure.

Choice B: Placing a pillow under the child's head is not the priority action, but rather an inappropriate action for a child who is having a tonic-clonic seizure and vomiting. A pillow under the head can obstruct the airway or cause aspiration of vomitus into the lungs. The nurse should remove any pillows or objects from around the head and neck area and support the head with their hands or on a flat surface.

Choice C: Clearing the area of hazards is not the priority action, but rather a secondary action for a child who is having a tonic-clonic seizure and vomiting. Clearing the area of hazards can prevent injury or harm to the child or others during or after the seizure. The nurse should remove any sharp, hard, or flammable objects from near or under the child and move any furniture or equipment away.

Choice D: Positioning the child side-lying is the priority action for a child who is having a tonic-clonic seizure and vomiting, as it can protect the airway and prevent aspiration of vomitus into the lungs. Aspiration can cause pneumonia, which is an infection of the lungs that can cause fever, cough, difficulty breathing, or death. The nurse should turn the child's head to one side and place them on their side with their knees bent and one arm under their head. The nurse should also suction any vomitus from their mouth and nose if needed.