Both members of an expectant couple are carriers for phenylketonuria (PKU), an autosomal recessive disorder. In counseling them about the risk to their unborn child, you should tell them that:
a. the child has a 25% chance of being affected.
b. the child will be a carrier, like the parents.
c. the child has a 50% chance of being affected.
d. one out of four of their children will be affected.
A
Each child born to a couple who carries an autosomal recessive trait has a 25% chance of having the disorder because the child receives either a normal or an abnormal gene from each parent.
You might also like to view...
The prescriber who follows the latest research regarding dosing of warfarin would consider which information prior to writing a prescription?
Note: Credit will be given only if all correct choices and no incorrect choices are selected. Standard Text: Select all that apply. 1. Client's alcohol consumption 2. Amount of green, leafy vegetables the client consumes 3. CYP2D6 status 4. CYP2C9 status 5. VKORC1 status
Which of the following anticonvulsants is indicated for the treatment of trigeminal neuralgia?
a. acetazolamide c. paramethadione b. phenytoin d. carbamazepine
The physician is about to remove a chest tube from a client. After the dressing is removed and the sutures have been cut, the nurse assisting the physician asks the client to:
1. Breathe in and out quickly. 2. Exhale immediately. 3. Take a deep breath. 4. Perform the Valsalva maneuver.
When fitting a blood pressure cuff to a patient's arm, the cuff should be at least _______ of the circumference of the patient's arm
A) 50% B) 60% C) 70% D) 80%