How to save the selected row number to NSUserDefaults

Question

I am trying to save the indexpath.row of the selected row to NSUserDefaults temporarily until my detail view controller can load its UITextFields based on which row is tapped. First of all is this good? I chose this design because the detail view controller cannot access the master view controller so I can't find out which row its tapped. To save to NSUSerDefaults, I did the following code, and the NSLog is always returning row 0 no matter what row I tap. Plus the title is not being set: its still blank.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
    [patientList deselectRowAtIndexPath:indexPath animated:YES];
    [[NSUserDefaults standardUserDefaults] setInteger:indexPath.row forKey:@"rowSelected"];
    NSLog(@"The selected row saved is row %d"), [[NSUserDefaults standardUserDefaults] integerForKey:@"rowSelected"];
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        PatientDetailViewController *detailViewController = [[PatientDetailViewController alloc] initWithNibName:@"PatientDetailViewController" bundle:nil];
        detailViewController.title = [patientDisplayName objectAtIndex:[[NSUserDefaults standardUserDefaults] integerForKey:@"rowSelected"]];
        // Pass the selected object to the new view controller.
        [self.navigationController pushViewController:detailViewController animated:YES];
        [detailViewController release];

Answer 1

I have also tried setting the title differently (I also added comments to explain each line what it does, the rest is the same), but neither methods work
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
    // Deselect the row
    [patientList deselectRowAtIndexPath:indexPath animated:YES];
    // Save to memory the row selected
    [[NSUserDefaults standardUserDefaults] setInteger:indexPath.row forKey:@"rowSelected"];
    // Show saved row to make sure it saved correctly
    NSLog(@"The selected row saved is row %d"), [[NSUserDefaults standardUserDefaults] integerForKey:@"rowSelected"];
    // Check if user is using iPhone
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        // Load the view
        PatientDetailViewController *detailViewController = [[PatientDetailViewController alloc] initWithNibName:@"PatientDetailViewController" bundle:nil];
        // Set the title of the detail view controller based on row selected
        detailViewController.title = [patientDisplayName objectAtIndex:indexPath.row];
        // Push the detail view controller
        [self.navigationController pushViewController:detailViewController animated:YES];
        // Release the detail view controller
        [detailViewController release];