Joanna had a small ventricle septal defect (vsd) repaired when she was 3 years old and has no residual cardiac problems. she is now 28 and is requesting prophylactic antibiotics for an upcoming dental visit. the appropriate antibiotic to prescribe according to current american college of cardiology and american heart association guidelines is:

In the given case, no antibiotic is needed for dental procedures.  

Based on the updated recommendations from the American Heart Association, there is no need to take a precautionary antibiotic prior to dental proceedings for the majority of people.  

It has been suggested by AHA that only those who are at greatest threat of bad consequences from infective endocarditis needs to get the short-term preventive antibiotics prior to routine dental approaches.  

It has been recommended by the AHA guidelines that various of the people who have taken preventive antibiotics in the past no longer need them, these include the individuals with the conditions, like mitral valve prolapse, ventricular septal defect, bicuspid valve disease, rheumatic heart disease, and others.  

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

gold i'm pretty sure i might be wrong